Adan Ruben Rodriguez Dominguez

Adan Ruben Rodriguez Dominguez

Universidad Autónoma de San Luis Potosí

H-index: 77

Latin America-Mexico

About Adan Ruben Rodriguez Dominguez

Adan Ruben Rodriguez Dominguez, With an exceptional h-index of 77 and a recent h-index of 56 (since 2020), a distinguished researcher at Universidad Autónoma de San Luis Potosí, specializes in the field of theoretical physics, condensed matter, mathematical physics, electronic and magnetic structure of small TM clusters, their stabi.

Adan Ruben Rodriguez Dominguez Information

University

Universidad Autónoma de San Luis Potosí

Position

Instituto de Física-

Citations(all)

19734

Citations(since 2020)

12609

Cited By

5559

hIndex(all)

77

hIndex(since 2020)

56

i10Index(all)

217

i10Index(since 2020)

185

Email

University Profile Page

Universidad Autónoma de San Luis Potosí

Adan Ruben Rodriguez Dominguez Skills & Research Interests

theoretical physics

condensed matter

mathematical physics

electronic and magnetic structure of small TM clusters

their stabi

Top articles of Adan Ruben Rodriguez Dominguez

Structures of Ni-doped Bn (n= 1-13) clusters: A Computational Study

Authors

PL Rodríguez-Kessler,Alejandro Vásquez-Espinal,AR Rodríguez-Domínguez,JL Cabellos-Quiroz,A Muñoz-Castro

Journal

Inorganica Chimica Acta

Published Date

2024/4/24

The structural and stability properties of Ni-doped boron clusters (NiB n with n= 1-13) are investigated by the SCG (systematic growth algorithm) method in combination with density functional theory (DFT) calculations. The results show that the Ni dopant adopt peripheral and top positions in the lowest-energy structures of NiB n clusters. Planar and quasi-planar structures are found for n= 3-6, 10 and 11 while three-dimensional for n= 7-8, 12 and 13. The NiB n clusters show slightly less binding energy compared to the pure B n clusters. The relative stability of the clusters is rationalized through energetic parameters such as ionization potential, electron affinity, second order energy difference and HOMO-LUMO gap. The results show that Ni B 12 possess magic characteristics, supported by the energetic parameters and AdNDP bonding analyses.

Helium identification with LHCb

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,P Adlarson,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Pasquale Andreola,Mirco Andreotti,Dimitra Andreou,AA Anelli,Dong Ao,Flavio Archilli,Matteo Argenton,S Arguedas Cuendis,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,David Bacher,I Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,JJ Back,A Bailly-reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,IR Barbosa,RJ Barlow,S Barsuk,W Barter,M Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Andrew Beiter,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,J Bex,Ia Bezshyiko,J Bhom,MS Bieker,NV Biesuz,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,V Bocharnikov,JA Boelhauve,O Boente Garcia,T Boettcher,A Bohare,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,N Breer,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,M Calvi,M Calvo Gomez,J Cambon Bouzas,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,R Caravaca-Mora,A Carbone

Journal

Journal of Instrumentation

Published Date

2024/2/1

The identification of helium nuclei at LHCb is achieved using a method based on measurements of ionisation losses in the silicon sensors and timing measurements in the Outer Tracker drift tubes. The background from photon conversions is reduced using the RICH detectors and an isolation requirement. The method is developed using ???????? collision data at

Evaluation of the implementation of a community health worker-led COVID-19 contact tracing intervention in Chiapas, Mexico, from March 2020 to December 2021

Authors

Zeus Aranda,Sandra Vázquez,Anuraag Gopaluni,Laura Martínez,Mayra Ramírez,Ariwame Jiménez,Daniel Bernal,Ana L Rodríguez,Selene Chacón,Bruno Vargas,Isabel R Fulcher,Dale A Barnhart,Partners In Health Cross-Site COVID-19 Cohort Technical Working Group

Journal

BMC Health Services Research

Published Date

2024/1/18

BackgroundMexico is one of the countries with the greatest excess death due to COVID-19. Chiapas, the poorest state in the country, has been particularly affected. Faced with an exacerbated shortage of health professionals, medical supplies, and infrastructure to respond to the pandemic, the non-governmental organization Compañeros En Salud (CES) implemented a COVID-19 infection prevention and control program to limit the impact of the pandemic in the region. We evaluated CES’s implementation of a community health worker (CHW)-led contact tracing intervention in eight rural communities in Chiapas.MethodsOur retrospective observational study used operational data collected during the contract tracing intervention from March 2020 to December 2021. We evaluated three outcomes: contact tracing coverage, defined as the proportion of named contacts that were located by CHWs, successful …

Observation of and decays

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,P Adlarson,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Pasquale Andreola,Mirco Andreotti,Dimitra Andreou,Alessia Anelli,Dong Ao,Flavio Archilli,Matteo Argenton,S Arguedas Cuendis,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,David Bacher,I Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Leite,Matteo Barbetti,Ivanildo Rui Barbosa,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Justin Bartz,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Andrew Beiter,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Josh Bex,Ia Bezshyiko,Jihyun Bhom,Martin Stefan Bieker,Nicolo Vladi Biesuz,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Michele Piero Blago,Thomas Blake,Frederic Blanc,Jonah Evan Blank,Steven Blusk,Dana Bobulska,Vladimir Bocharnikov,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Abhishek Bohare,Alexey Boldyrev,CS Bolognani,Riccardo Bolzonella,Nikolay Bondar,Federica Borgato,Silvia Borghi,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Nils Breer,Jolanta Brodzicka,A Brossa Gonzalo,J Brown,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Marta Calvi,M Calvo Gomez,J Cambon Bouzas,Pierluigi Campana,DH Perez,AF Quezada,Simone Capelli,Lorenzo Capriotti,R Caravaca-Mora,Angelo Carbone

Journal

arXiv preprint arXiv:2311.14088

Published Date

2023/11/23

The decays and are observed for the first time, in proton-proton collision data at TeV corresponding to an integrated luminosity of 5.4 fb collected with the LHCb detector. Their ratios of branching fractions with respect to the mode are measured to be \begin{align*} \begin{split} \frac{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+\bar{D}^0 K^-)}{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+ D_s^-)} & = 0.1908 {}_{-0.0034}^{+0.0036} {}_{-0.0018}^{+0.0016} \pm 0.0038 \\ \frac{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+\bar{D}^{*0} K^-)}{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+ D_s^-)} & = 0.589 {}_{-0.017}^{+0.018} {}_{-0.018}^{+0.017} \pm 0.012 \\ \frac{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+ D_s^{*-})}{\mathcal{B}(\Lambda_b^0 \to \Lambda_c^+ D_s^-)} & = 1.668 \pm 0.022 {}_{-0.055}^{+0.061}\ , \end{split} \end{align*} where the first uncertainties are statistical, the second systematic, and the third, for the decays, are due to the uncertainties on the branching fractions of the and decay modes. The measured branching fractions probe factorization assumptions in effective theories and provide the normalization for future pentaquark searches in decay channels.

Performance of a modular ton-scale pixel-readout liquid argon Time Projection Chamber

Authors

Adam Abed Abud

Journal

arXiv preprint arXiv:2403.03212

Published Date

2024/3/5

The Module-0 Demonstrator is a single-phase 600 kg liquid argon time projection chamber operated as a prototype for the DUNE liquid argon near detector. Based on the ArgonCube design concept, Module-0 features a novel 80k-channel pixelated charge readout and advanced high-coverage photon detection system. In this paper, we present an analysis of an eight-day data set consisting of 25 million cosmic ray events collected in the spring of 2021. We use this sample to demonstrate the imaging performance of the charge and light readout systems as well as the signal correlations between the two. We also report argon purity and detector uniformity measurements, and provide comparisons to detector simulations.

The DUNE Far Detector Vertical Drift Technology, Technical Design Report

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,M Adamowski,D Adams,M Adinolfi,C Adriano,A Aduszkiewicz,J Aguilar,B Aimard,F Akbar,K Allison,S Alonso Monsalve,M Alrashed,A Alton,R Alvarez,H Amar,P Amedo,J Anderson,DA Andrade,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,A Aranda-Fernandez,L Arellano,E Arrieta Diaz,MA Arroyave,J Asaadi,A Ashkenazi,L Asquith,E Atkin,D Auguste,A Aurisano,V Aushev,D Autiero,F Azfar,A Back,H Back,JJ Back,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,W Baldini,B Baller,B Bambah,R Banerjee,F Barao,G Barenboim,P Barham Alzás,GJ Barker,W Barkhouse,G Barr,J Barranco Monarca,A Barros,N Barros,D Barrow,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,C Batchelor,L Bathe-Peters,JBR Battat,F Battisti,F Bay,MCQ Bazetto,JLL Alba,JF Beacom,E Bechetoille,B Behera,E Belchior,G Bell,L Bellantoni,G Bellettini,V Bellini,O Beltramello,N Benekos,C Benitez Montiel,D Benjamin,F Bento Neves,J Berger,S Berkman,P Bernardini,A Bersani,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,Y Bezawada,AT Bezerra,TJ Bezerra,A Bhat,V Bhatnagar,J Bhatt,M Bhattacharjee,M Bhattacharya,S Bhuller,B Bhuyan,S Biagi,J Bian,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FD Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,C Bonilla-Diaz,F Bonini,A Booth,F Boran,S Bordoni,R Borges Merlo,A Borkum,N Bostan,J Bracinik,D Braga,B Brahma,D Brailsford,F Bramati,A Branca,A Brandt,J Bremer,C Brew,SJ Brice,V Brio,C Brizzolari,C Bromberg,J Brooke,A Bross,G Brunetti,M Brunetti

Journal

arXiv preprint arXiv:2312.03130

Published Date

2023/12/5

DUNE is an international experiment dedicated to addressing some of the questions at the forefront of particle physics and astrophysics, including the mystifying preponderance of matter over antimatter in the early universe. The dual-site experiment will employ an intense neutrino beam focused on a near and a far detector as it aims to determine the neutrino mass hierarchy and to make high-precision measurements of the PMNS matrix parameters, including the CP-violating phase. It will also stand ready to observe supernova neutrino bursts, and seeks to observe nucleon decay as a signature of a grand unified theory underlying the standard model. The DUNE far detector implements liquid argon time-projection chamber (LArTPC) technology, and combines the many tens-of-kiloton fiducial mass necessary for rare event searches with the sub-centimeter spatial resolution required to image those events with high precision. The addition of a photon detection system enhances physics capabilities for all DUNE physics drivers and opens prospects for further physics explorations. Given its size, the far detector will be implemented as a set of modules, with LArTPC designs that differ from one another as newer technologies arise. In the vertical drift LArTPC design, a horizontal cathode bisects the detector, creating two stacked drift volumes in which ionization charges drift towards anodes at either the top or bottom. The anodes are composed of perforated PCB layers with conductive strips, enabling reconstruction in 3D. Light-trap-style photon detection modules are placed both on the cryostat's side walls and on the central cathode where they are …

Measurement of the CKM angle γ in the B 0 → D K ∗ 0 channel using self-conjugate D → K S 0 h + h - decays

Authors

R Aaij,A Abdelmotteleb,C Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,P Adlarson,H Afsharnia,C Agapopoulou,C Aidala,Z Ajaltouni,S Akar,K Akiba,P Albicocco,J Albrecht,F Alessio,M Alexander,A Albero,Z Aliouche,P Cartelle,R Amalric,S Amato,J Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,P Andreola,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,I Perea,S Bachmann,M Bachmayer,J Back,A Bailly-reyre,P Rodriguez,V Balagura,W Baldini,J Souza Leite,M Barbetti,I Barbosa,R Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,J Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Andres,D Berninghoff,H Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,J Bhom,L Bian,M Bieker,N Biesuz,P Billoir,A Biolchini,M Birch,F Bishop,A Bitadze,A Bizzeti,M Blago,T Blake,F Blanc,J Blank,S Blusk,D Bobulska,V Bocharnikov,J Boelhauve,O Garcia,T Boettcher,A Bohare,A Boldyrev,C Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,J Borsuk,S Bouchiba,T Bowcock,A Boyer,C Bozzi,M Bradley,S Braun,A Rodriguez,N Breer,J Brodzicka,A Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,A Burke,C Burr,A Bursche,A Butkevich,J Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,M Calvi,M Gomez,P Campana,D Perez,A Quezada,S Capelli,L Capriotti,A Carbone,R Cardinale,A Cardini,P Carniti,L Carus

Journal

European Physical Journal C

Published Date

2024/2/29

A model-independent study of CP violation in B0→ DK∗ 0 decays is presented using data corresponding to an integrated luminosity of 9fb− 1 collected by the LHCb experiment at centre-of-mass energies of

Doping liquid argon with xenon in ProtoDUNE Single-Phase: effects on scintillation light

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,M Adamowski,D Adams,M Adinolfi,C Adriano,A Aduszkiewicz,J Aguilar,B Aimard,F Akbar,K Allison,S Alonso Monsalve,M Alrashed,A Alton,R Alvarez,H Amar Es-sghir,P Amedo,J Anderson,DA Andrade,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,A Aranda-Fernandez,L Arellano,E Arrieta Diaz,MA Arroyave,J Asaadi,A Ashkenazi,L Asquith,E Atkin,D Auguste,A Aurisano,V Aushev,D Autiero,F Azfar,A Back,H Back,JJ Back,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,W Baldini,B Baller,B Bambah,R Banerjee,F Barao,G Barenboim,P Barham Alzás,GJ Barker,W Barkhouse,G Barr,J Barranco Monarca,A Barros,N Barros,D Barrow,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,C Batchelor,L Bathe-Peters,JBR Battat,F Battisti,F Bay,MCQ Bazetto,JLL Alba,JF Beacom,E Bechetoille,B Behera,E Belchior,G Bell,L Bellantoni,G Bellettini,V Bellini,O Beltramello,N Benekos,C Benitez Montiel,D Benjamin,F Bento Neves,J Berger,S Berkman,P Bernardini,A Bersani,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,Y Bezawada,AT Bezerra,TJ Bezerra,A Bhat,V Bhatnagar,J Bhatt,M Bhattacharjee,M Bhattacharya,S Bhuller,B Bhuyan,S Biagi,J Bian,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FD Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,C Bonilla-Diaz,F Bonini,A Booth,F Boran,S Bordoni,R Borges Merlo,A Borkum,N Bostan,J Bracinik,D Braga,B Brahma,D Brailsford,F Bramati,A Branca,A Brandt,J Bremer,C Brew,SJ Brice,V Brio,C Brizzolari,C Bromberg,J Brooke,A Bross,G Brunetti,M Brunetti

Journal

arXiv preprint arXiv:2402.01568

Published Date

2024/2/2

Doping of liquid argon TPCs (LArTPCs) with a small concentration of xenon is a technique for light-shifting and facilitates the detection of the liquid argon scintillation light. In this paper, we present the results of the first doping test ever performed in a kiloton-scale LArTPC. From February to May 2020, we carried out this special run in the single-phase DUNE Far Detector prototype (ProtoDUNE-SP) at CERN, featuring 770 t of total liquid argon mass with 410 t of fiducial mass. The goal of the run was to measure the light and charge response of the detector to the addition of xenon, up to a concentration of 18.8 ppm. The main purpose was to test the possibility for reduction of non-uniformities in light collection, caused by deployment of photon detectors only within the anode planes. Light collection was analysed as a function of the xenon concentration, by using the pre-existing photon detection system (PDS) of ProtoDUNE-SP and an additional smaller set-up installed specifically for this run. In this paper we first summarize our current understanding of the argon-xenon energy transfer process and the impact of the presence of nitrogen in argon with and without xenon dopant. We then describe the key elements of ProtoDUNE-SP and the injection method deployed. Two dedicated photon detectors were able to collect the light produced by xenon and the total light. The ratio of these components was measured to be about 0.65 as 18.8 ppm of xenon were injected. We performed studies of the collection efficiency as a function of the distance between tracks and light detectors, demonstrating enhanced uniformity of response for the anode-mounted PDS …

Highly-parallelized simulation of a pixelated LArTPC on a GPU

Authors

A Abed Abud,Babak Abi,Roberto Acciarri,MA Acero,MR Adames,George Adamov,Mark Adamowski,David Adams,Marco Adinolfi,Cris Adriano,Antoni Aduszkiewicz,Jessica Aguilar,Zubayer Ahmad,Jhanzeb Ahmed,Benjamin Aimard,Faiza Akbar,Kyle Allison,S Alonso Monsalve,Munera Alrashed,Christoph Alt,Andrew Alton,Rodrigo Alvarez,Pablo Amedo,John Anderson,DA Andrade,Costas Andreopoulos,Mirco Andreotti,Michael P Andrews,Fenompanirina Andrianala,Sofia Andringa,Nikolay Anfimov,WL Anicézio Campanelli,Artur Ankowski,Marcelo Antoniassi,Maria Antonova,Alexander Antoshkin,Stefan Antusch,Alfredo Aranda-Fernandez,Luciano Arellano,LO Arnold,MA Arroyave,Jonathan Asaadi,Adi Ashkenazi,Lily Asquith,Adam Aurisano,Vladimir Aushev,Dario Autiero,M Ayala-Torres,Farrukh Azfar,Ashley Back,Henning Back,JJ Back,Iuri Bagaturia,Linda Bagby,Nikita Balashov,Supraja Balasubramanian,Pierre Baldi,Wander Baldini,Bruce Baller,Bindu Bambah,Fernando Barao,Gabriela Barenboim,P Barham Alzás,GJ Barker,Wayne Barkhouse,Christopher Barnes,Giles Barr,J Barranco Monarca,Adilson Barros,Nuno Barros,JL Barrow,Anastasia Basharina-Freshville,Amit Bashyal,Vincent Basque,Charlie Batchelor,JBR Battat,Federico Battisti,Fatih Bay,MCQ Bazetto,JLL Bazo Alba,JF Beacom,Edouard Bechetoille,Biswaranjan Behera,Ewerton Belchior,Leo Bellantoni,Giorgio Bellettini,Vincenzo Bellini,Olga Beltramello,Nektarios Benekos,C Benitez Montiel,Douglas Benjamin,F Bento Neves,Joshua Berger,Sophie Berkman,Paolo Bernardini,RM Berner,Andrea Bersani,Sergio Bertolucci,Minerba Betancourt,A Betancur Rodríguez,Adrian Bevan,Yashwanth Bezawada,AT Bezerra,TJ Bezerra,Jay Bhambure,Akhil Bhardwaj,Vipin Bhatnagar,Maharnab Bhattacharjee,Meghna Bhattacharya,Devesh Bhattarai,Shyam Bhuller,Bipul Bhuyan,Simone Biagi,Jianming Bian,Matteo Biassoni,Kurt Biery,Burak Bilki,Mary Bishai,Valeria Bisignani,Alexander Bitadze,Andrew Blake,FD Blaszczyk,GC Blazey,Dylan Blend,Edward Blucher,Jan Boissevain,Sara Bolognesi,Timothy Bolton,Luca Bomben,Maurizio Bonesini,Cesar Bonilla-Diaz,Filiberto Bonini,Alexander Booth,Fatma Boran,Stefania Bordoni,Aran Borkum,Nilay Bostan,Petr Bour,Daniel Boyden,Juraj Bracinik,Davide Braga,Dominic Brailsford,Antonio Branca,Andrew Brandt,Marina Bravo-Moreno,Johan Bremer,Christopher Brew,SJ Brice,Claudia Brizzolari,Carl Bromberg

Journal

Journal of Instrumentation

Published Date

2023/4/26

The idea of using a liquid argon time projection chambers (LArTPC) for the detection of neutrino interactions was first proposed in 1977 [1]. The detection mechanism is the following: charged particles produced by neutrino interactions ionize the argon, leaving a trail of ionization electrons. In addition, liquid argon also produces scintillation light, which provides calorimetric information and a fast timing signal (O (10 ns)[2]). A fraction of the ionized electrons recombine immediately with the positive argon ions, while the remaining ones drift towards the anode side of the detector in a homogeneous electric field applied to the argon volume, which is usually O (100 V/cm). Impurities present in the LAr (eg O2, H2O, N2) can attach a portion of the drifting electrons. The amount of drifting electrons declines as a function of the distance from the anode, since the electrons need to travel a longer path. Typically, two or more …

First observation and branching fraction measurement of the decay

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,P Adlarson,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dimitra Andreou,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,IB Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,JJ Back,Aurelien Bailly-Reyre,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Andrew Beiter,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse,M Cattaneo

Journal

Journal of High Energy Physics

Published Date

2023/7

The first observation of the decay is presented using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of= 13 TeV, corresponding to a total integrated luminosity of 6 fb− 1. Using the decay as the normalisation mode, the branching fraction of the decay is measured to be\(\mathcal {B}\left ({\Lambda} _b^ 0\to {D} _s^{-} p\right)=\left (12.6\pm 0.5\pm 0.3\pm 1.2\right)\times {10}^{-6}\), where the first uncertainty is statistical, the second systematic and the third due to uncertainties in the branching fractions of the, and decays.

Search for the doubly heavy baryon decaying to

Authors

Roel Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,Michael Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,S Blusk,Dana Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,N Bondar,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero,V Cavallini,S Celani,J Cerasoli

Journal

Chinese Physics C

Published Date

2023/9/1

A first search for the decay is performed by the LHCb experiment with a data sample of proton-proton collisions, corresponding to an integrated luminosity of 9 fb− 1 recorded at centre-of-mass energies of 7, 8, and 13 TeV. Two peaking structures are seen with a local (global) significance of and standard deviations at masses of 6571 and 6694 MeV/, respectively. Upper limits are set on the baryon production cross-section times the branching fraction relative to that of the decay at centre-of-mass energies of 8 and 13 TeV, in the and in the rapidity and transverse-momentum ranges from 2.0 to 4.5 and 0 to, respectively. Upper limits are presented as a function of the mass and lifetime.

Test of Lepton Universality in Decays

Authors

R Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,P Adlarson,H Afsharnia,C Agapopoulou,CA Aidala,Z Ajaltouni,S Akar,K Akiba,P Albicocco,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,I Bachiller Perea,S Bachmann,M Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Bernet Andres,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse

Journal

Physical review letters

Published Date

2023/8/2

The first simultaneous test of muon-electron universality using B+→ K+ ℓ+ ℓ− and B 0→ K* 0 ℓ+ ℓ− decays is performed, in two ranges of the dilepton invariant-mass squared, q 2. The analysis uses beauty mesons produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 fb− 1. Each of the four lepton universality measurements reported is either the first in the given q 2 interval or supersedes previous LHCb measurements. The results are compatible with the predictions of the Standard Model.

Measurement of using the decay mode

Authors

R Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,N Bondar,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero,V Cavallini

Journal

The European Physical Journal C

Published Date

2023/7/17

Using a proton–proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of , the lifetime of the light mass eigenstate, , is measured using the decay mode to be \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\begin{aligned} \tau _{\text {L}} = 1.445 \pm 0.016 \text {(stat)} \pm 0.008 \text {(syst)} \,\text {ps}. \end{aligned}$$\end{document}A combination of this result with a previous LHCb analysis using an independent dataset corresponding to 3 fb of integrated luminosity gives \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb …

Observation of the decay

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,JA Adams,AA Adefisoye,Bernardo Adeva,Marco Adinolfi,P Adlarson,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Pasquale Andreola,Mirco Andreotti,Dimitra Andreou,Alessia Anelli,Dong Ao,Flavio Archilli,Matteo Argenton,S Arguedas Cuendis,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,David Bacher,I Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Leite,Matteo Barbetti,Ivanildo Rui Barbosa,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Justin Bartz,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Andrew Beiter,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Josh Bex,Ia Bezshyiko,Jihyun Bhom,Martin Stefan Bieker,Nicolo Vladi Biesuz,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Thomas Blake,Frederic Blanc,Jonah Evan Blank,Steven Blusk,Vladimir Bocharnikov,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Abhishek Bohare,Alexey Boldyrev,CS Bolognani,Riccardo Bolzonella,Nikolay Bondar,Federica Borgato,Silvia Borghi,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,A Brea Rodriguez,Nils Breer,Jolanta Brodzicka,A Brossa Gonzalo,J Brown,Davide Brundu,Emma Buchanan,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Marta Calvi,M Calvo Gomez,J Cambon Bouzas,Pierluigi Campana,DH Perez,AF Quezada,Simone Capelli,Lorenzo Capriotti,R Caravaca-Mora,Angelo Carbone,L Carcedo Salgado,Roberta Cardinale

Journal

arXiv preprint arXiv:2402.05523

Published Date

2024/2/8

The first observation of the decay is reported with high significance using proton-proton collision data, corresponding to an integrated luminosity of 9fb, collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV. The ratio of its branching fraction relative to the channel is measured to be $$ \frac{ {\cal{B}}( B_c^+ \to J/\psi \pi^+\pi^0 ) } { {\cal{B}}( B_c^+ \to J/\psi \pi^+ ) } = 2.80 \pm 0.15 \pm 0.11 \pm 0.16 \,, $$ where the first uncertainty is statistical, the second systematic and the third related to imprecise knowledge of the branching fractions for and decays, which are used to determine the detection efficiency. The mass spectrum is found to be consistent with the dominance of an intermediate contribution in accordance with a model based on QCD factorisation.

Measurement of exclusive pion pair production in proton-proton collisions at√{s}= 7 TeV with the ATLAS detector

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,M Adamowski,D Adams,M Adinolfi,C Adriano,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Aimard,F Akbar,B Ali-Mohammadzadeh,K Allison,S Alonso Monsalve,M AlRashed,C Alt,A Alton,R Alvarez,P Amedo,J Anderson,C Andreopoulos,M Andreotti,M Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,L Arellano,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,V Ayala Lara,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,G Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,C Batchelor,J Battat,F Battisti,F Bay,MCQ Bazetto,JL Bazo Alba,JF Beacom,E Bechetoille,B Behera,E das Chagas,L Bellantoni,G Bellettini,V Bellini,O Beltramello,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,A Bersani,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,Y Bezawada,AT Bezerra,TJ Bezerra,A Bhardwaj,V Bhatnagar,M Bhattacharjee,D Bhattarai,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FDM Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,C Bonilla-Diaz,F Bonini,A Booth,F Boran,S Bordoni,A Borkum,N Bostan,P Bour,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,C Brew,SJ Brice,C Brizzolari,C Bromberg,J Brooke,A Bross,G Brunetti,M Brunetti,N Buchanan,H Budd,I Butorov,I Cagnoli

Journal

European Physical Journal C

Published Date

2023/7

The Pandora Software Development Kit and algorithm libraries provide pattern-recognition logic essential to the reconstruction of particle interactions in liquid argon time projection chamber detectors. Pandora is the primary event reconstruction software used at ProtoDUNE-SP, a prototype for the Deep Underground Neutrino Experiment far detector. ProtoDUNE-SP, located at CERN, is exposed to a charged-particle test beam. This paper gives an overview of the Pandora reconstruction algorithms and how they have been tailored for use at ProtoDUNE-SP. In complex events with numerous cosmic-ray and beam background particles, the simulated reconstruction and identification efficiency for triggered test-beam particles is above 80% for the majority of particle type and beam momentum combinations. Specifically, simulated 1 GeV/c charged pions and protons are correctly reconstructed and identified with …

Study of charmonium decays to in the channels

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,P Adlarson,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dimitra Andreou,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,IB Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,JJ Back,Aurelien Bailly-Reyre,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Andrew Beiter,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Nicolo Vladi Biesuz,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Michele Piero Blago,Thomas Blake,Frederic Blanc,Jonah Evan Blank,Steven Blusk,Dana Bobulska,VB Bocharnikov,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,CS Bolognani,Riccardo Bolzonella,Nikolay Bondar,Federica Borgato,Silvia Borghi,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Nils Breer,Jolanta Brodzicka,A Brossa Gonzalo,J Brown,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Marta Calvi,M Calvo Gomez,Pierluigi Campana,DH Campora Perez,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Roberta Cardinale,Alessandro Cardini,Paolo Carniti,L Carus,A Casais Vidal,Rowina Caspary,Gianluigi Casse

Journal

Physical Review D

Published Date

2023/8/17

A study of the B+→ K S 0 K+ K− π+ and B+→ K S 0 K+ K+ π− decays is performed using proton-proton collisions at center-of-mass energies of 7, 8 and 13 TeV at the LHCb experiment. The K S 0 K π invariant mass spectra from both decay modes reveal a rich content of charmonium resonances. New precise measurements of the η c and η c (2 S) resonance parameters are performed and branching fraction measurements are obtained for B+ decays to η c, J/ψ, η c (2 S) and χ c 1 resonances. In particular, the first observation and branching fraction measurement of B+→ χ c 0 K 0 π+ is reported as well as first measurements of the B+→ K 0 K+ K− π+ and B+→ K 0 K+ K+ π− branching fractions. Dalitz plot analyses of η c→ K S 0 K π and η c (2 S)→ K S 0 K π decays are performed. A new measurement of the amplitude and phase of the K π S-wave as functions of the K π mass is performed, together with measurements …

Test of lepton flavor universality using decays with hadronic channels

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,P Adlarson,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dimitra Andreou,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,IB Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,JJ Back,Aurelien Bailly-Reyre,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Andrew Beiter,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Nicolo Vladi Biesuz,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Michele Piero Blago,Thomas Blake,Frederic Blanc,Jonah Evan Blank,Steven Blusk,Dana Bobulska,VB Bocharnikov,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,CS Bolognani,Riccardo Bolzonella,Nikolay Bondar,Federica Borgato,Silvia Borghi,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Nils Breer,Jolanta Brodzicka,A Brossa Gonzalo,J Brown,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Marta Calvi,M Calvo Gomez,Pierluigi Campana,DH Campora Perez,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Roberta Cardinale,Alessandro Cardini,Paolo Carniti,L Carus,A Casais Vidal,Rowina Caspary,Gianluigi Casse

Journal

Physical Review D

Published Date

2023/7/27

The branching fraction B (B 0→ D*− τ+ ν τ) is measured relative to that of the normalization mode B 0→ D*− π+ π− π+ using hadronic τ+→ π+ π− π+(π 0) ν τ decays in proton-proton collision data at a center-of-mass energy of 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 2 fb− 1. The measured ratio is B (B 0→ D*− τ+ ν τ)/B (B 0→ D*− π+ π− π+)= 1.70±0.1 0− 0.10+ 0.11, where the first uncertainty is statistical and the second is related to systematic effects. Using established branching fractions for the B 0→ D*− π+ π− π+ and B 0→ D*− μ+ ν μ modes, the lepton universality test R (D*−)≡ B (B 0→ D*− τ+ ν τ)/B (B 0→ D*− μ+ ν μ) is calculated, R (D*−)= 0.247±0.015±0.015±0.012, where the third uncertainty is due to the uncertainties on the external branching fractions. This result is consistent with the Standard Model prediction and with previous measurements.

Measurement of the Branching Fractions B (B0→ p (p) over-barp (p) over-bar) and B (Bs0→ p (p) over-barp (p) over-bar)

Authors

R Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinen,T Ackernley,B Adeva,M Adinolfi,P Adlarson,H Afsharnia,C Agapopoulou,CA Aidala,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Bernet Andres,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Breckenridge,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal

Journal

PHYSICAL REVIEW LETTERS

Published Date

2023

Searches for the rare hadronic decays B0→ pppp and Bs0→ pppp are performed using proton-proton collision data recorded by the LHCb experiment and corresponding to an integrated luminosity of 9 fb-1. Significances of 9.3 σ and 4.0 σ, including statistical and systematic uncertainties, are obtained for the B0→ pppp and Bs0→ pppp signals, respectively. The branching fractions are measured relative to the topologically similar normalization decays B0→ J/ψ (→ pp) K∗ 0 (→ K+ π-) and Bs0→ J/ψ (→ pp)⁢ φ (→ K+ K-). The branching fractions are measured to be B (B0→ pppp)=(2.2±0.4±0.1±0.1)× 10-8 and B (Bs0→ pppp)=(2.3±1.0±0.2±0.1)× 10-8. In these measurements, the first uncertainty is statistical, the second is systematic, and the third one is due to the external branching fraction of the normalization channel.

Reconstruction of interactions in the ProtoDUNE-SP detector with Pandora

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,M Adamowski,D Adams,M Adinolfi,C Adriano,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Aimard,F Akbar,B Ali-Mohammadzadeh,K Allison,S Alonso Monsalve,M Alrashed,C Alt,A Alton,R Alvarez,P Amedo,J Anderson,C Andreopoulos,M Andreotti,M Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,L Arellano,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,V Ayala Lara,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,G Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,C Batchelor,J Battat,F Battisti,F Bay,MCQ Bazetto,JL Bazo Alba,JF Beacom,E Bechetoille,B Behera,E Belchior Batista das Chagas,L Bellantoni,G Bellettini,V Bellini,O Beltramello,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,A Bersani,S Bertolucci,M Betancourt,A Bevan,Y Bezawada,AT Bezerra,TJ Bezerra,A Bhardwaj,V Bhatnagar,M Bhattacharjee,D Bhattarai,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FDM Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,C Bonilla-Diaz,F Bonini,A Booth,F Boran,S Bordoni,A Borkum,N Bostan,P Bour,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,C Brew,SJ Brice,C Brizzolari,C Bromberg,J Brooke,A Bross,G Brunetti,M Brunetti,N Buchanan,H Budd,I Butorov,I Cagnoli,T Cai

Journal

EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS

Published Date

2023/7/14

The Pandora Software Development Kit and algorithm libraries provide pattern-recognition logic essential to the reconstruction of particle interactions in liquid argon time projection chamber detectors. Pandora is the primary event reconstruction software used at ProtoDUNE-SP, a prototype for the Deep Underground Neutrino Experiment far detector. ProtoDUNE-SP, located at CERN, is exposed to a charged-particle test beam. This paper gives an overview of the Pandora reconstruction algorithms and how they have been tailored for use at ProtoDUNE-SP. In complex events with numerous cosmic-ray and beam background particles, the simulated reconstruction and identification efficiency for triggered test-beam particles is above 80% for the majority of particle type and beam momentum combinations. Specifically, simulated 1 GeV/c charged pions and protons are correctly reconstructed and identified with efficiencies of 86 …

Impact of cross-section uncertainties on supernova neutrino spectral parameter fitting in the Deep Underground Neutrino Experiment

Authors

A Abed Abud,Babak Abi,Roberto Acciarri,MA Acero,MR Adames,George Adamov,Mark Adamowski,David Adams,Marco Adinolfi,Cris Adriano,Antoni Aduszkiewicz,Jessica Aguilar,Zubayer Ahmad,Jhanzeb Ahmed,Benjamin Aimard,Faiza Akbar,Kyle Allison,S Alonso Monsalve,Munera Alrashed,Andrew Alton,Rodrigo Alvarez,Pablo Amedo,John Anderson,DA Andrade,Costas Andreopoulos,Mirco Andreotti,Michael P Andrews,Fenompanirina Andrianala,Sofia Andringa,Nikolay Anfimov,WL Anicézio Campanelli,Artur Ankowski,Marcelo Antoniassi,Maria Antonova,Alexander Antoshkin,Alfredo Aranda-Fernandez,Luciano Arellano,LO Arnold,MA Arroyave,Jonathan Asaadi,Adi Ashkenazi,Lily Asquith,Edward Atkin,Didier Auguste,Adam Aurisano,Vladimir Aushev,Dario Autiero,M Ayala-Torres,Farrukh Azfar,Ashley Back,Henning Back,JJ Back,Iuri Bagaturia,Linda Bagby,Nikita Balashov,Supraja Balasubramanian,Pierre Baldi,Wander Baldini,Bruce Baller,Bindu Bambah,Rituparna Banerjee,Fernando Barao,Gabriela Barenboim,P Barham Alzás,GJ Barker,Wayne Barkhouse,Christopher Barnes,Giles Barr,J Barranco Monarca,Adilson Barros,Nuno Barros,JL Barrow,Anastasia Basharina-Freshville,Amit Bashyal,Vincent Basque,Charlie Batchelor,JBR Battat,Federico Battisti,Fatih Bay,MCQ Bazetto,JLL Bazo Alba,JF Beacom,Edouard Bechetoille,Biswaranjan Behera,Ewerton Belchior,Gerard Bell,Leo Bellantoni,Giorgio Bellettini,Vincenzo Bellini,Olga Beltramello,Nektarios Benekos,C Benitez Montiel,Douglas Benjamin,F Bento Neves,Joshua Berger,Sophie Berkman,Paolo Bernardini,RM Berner,Andrea Bersani,Sergio Bertolucci,Minerba Betancourt,A Betancur Rodríguez,Adrian Bevan,Yashwanth Bezawada,AT Bezerra,TJ Bezerra,Jay Bhambure,Akhil Bhardwaj,Vipin Bhatnagar,Maharnab Bhattacharjee,Meghna Bhattacharya,Devesh Bhattarai,Shyam Bhuller,Bipul Bhuyan,Simone Biagi,Jianming Bian,Kurt Biery,Burak Bilki,Mary Bishai,Alexander Bitadze,Andrew Blake,FD Blaszczyk,GC Blazey,Dylan Blend,Edward Blucher,Jan Boissevain,Sara Bolognesi,Timothy Bolton,Luca Bomben,Maurizio Bonesini,Cesar Bonilla-Diaz,Filiberto Bonini,Alexander Booth,Fatma Boran,Stefania Bordoni,Aran Borkum,Nilay Bostan,Petr Bour,Juraj Bracinik,Davide Braga,Dominic Brailsford,Antonio Branca,Andrew Brandt,Marina Bravo-Moreno,Johan Bremer,Christopher Brew,SJ Brice,Vanessa Brio,Claudia Brizzolari,Carl Bromberg

Journal

Physical Review D

Published Date

2023/6/29

A primary goal of the upcoming Deep Underground Neutrino Experiment (DUNE) is to measure the O (10) MeV neutrinos produced by a Galactic core-collapse supernova if one should occur during the lifetime of the experiment. The liquid-argon-based detectors planned for DUNE are expected to be uniquely sensitive to the ν e component of the supernova flux, enabling a wide variety of physics and astrophysics measurements. A key requirement for a correct interpretation of these measurements is a good understanding of the energy-dependent total cross section σ (E ν) for charged-current ν e absorption on argon. In the context of a simulated extraction of supernova ν e spectral parameters from a toy analysis, we investigate the impact of σ (E ν) modeling uncertainties on DUNE’s supernova neutrino physics sensitivity for the first time. We find that the currently large theoretical uncertainties on σ (E ν) must be …

Observation of a Resonant Structure near the Threshold in the Decay

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,S Aiola,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Bernet Andres,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,A Casais Vidal,R Caspary

Journal

Physical review letters

Published Date

2023/8/14

An amplitude analysis of the B+→ D s+ D s− K+ decay is carried out to study for the first time its intermediate resonant contributions, using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A near-threshold peaking structure, referred to as X (3960), is observed in the D s+ D s− invariant-mass spectrum with significance greater than 12 standard deviations. The mass, width, and the quantum numbers of the structure are measured to be 3956±5±10 MeV, 43±13±8 MeV, and J P C= 0++, respectively, where the first uncertainties are statistical and the second systematic. The properties of the new structure are consistent with recent theoretical predictions for a state composed of c c s s quarks. Evidence for an additional structure is found around 4140 MeV in the D s+ D s− invariant mass, which might be caused either by a new resonance with the 0++ assignment …

First observation of the decay

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dimitra Andreou,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,Aurelien Bailly-Reyre,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Nicolo Vladi Biesuz,Simone Bifani,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,CS Bolognani,Riccardo Bolzonella,Nikolay Bondar,Federica Borgato,Silvia Borghi,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Jolanta Brodzicka,A Brossa Gonzalo,J Brown,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,Pierluigi Campana,DH Campora Perez,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,A Casais Vidal,Rowina Caspary

Journal

Physical Review D

Published Date

2023/8/14

The B+→ D s+ D s− K+ decay is observed for the first time using proton-proton collision data collected by the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb− 1. Its branching fraction relative to that of the B+→ D+ D− K+ decay is measured to be B (B+→ D s+ D s− K+) B (B+→ D+ D− K+)= 0.525±0.033±0.027±0.034, where the first uncertainty is statistical, the second systematic, and the third is due to the uncertainties on the branching fractions of the D s±→ K∓ K±π±and D±→ K∓ π±π±decays. This measurement fills an experimental gap in the knowledge of the family of Cabibbo-favored b→ c c s transitions and opens the path for unique studies of spectroscopy in future.

Amplitude analysis of and decays

Authors

R Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,P Adlarson,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Bernet Andres,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal

Journal

Physical Review D

Published Date

2023/7/27

Resonant contributions in B 0→ DD 0 s+ π− and B+→ D− D s+ π+ decays are determined with an amplitude analysis, which is performed both separately and simultaneously, where in the latter case isospin symmetry between the decays is assumed. The analysis is based on data collected by the LHCb detector in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV. The full data sample corresponds to an integrated luminosity of 9 fb− 1. A doubly charged spin-0 open-charm tetraquark candidate together with a neutral partner, both with masses near 2.9 GeV, are observed in the D s π decay channel.

Erratum to: A study of CP violation in the decays B±→[K+ K− π+ π−] Dh±(h= K, π) and B±→[π+ π− π+ π−] Dh±(The European Physical Journal C,(2023), 83, 6,(547), 10.1140/epjc …

Authors

LHCb Collaboration

Journal

European Physical Journal C

Published Date

2023/7

In the original article, the PDF version is missing Fig. 8. The correct Fig. 8 is shown here.(Figure presented.) Interpretation of the binned and phase-space (‘PS’) integrated measurements in terms to the underlying physics parameters. The (Formula presented.) and (Formula presented.) contours are shown, which correspond to (Formula presented.)((Formula presented.)) and (Formula presented.)((Formula presented.)) confidence intervals, respectively. Also shown is the result from the analysis of other decay modes at LHCb (‘LHCb 2021’)[21] The original article has been corrected. The publisher apologizes for the inconvenience caused.

Search for the lepton-flavour violating decays B0→ K* 0τ±μ∓

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,S Aiola,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,A Bailly-reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Bernet Andres,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,A Casais Vidal,R Caspary

Journal

Journal of High Energy Physics

Published Date

2023/6

A first search for the lepton-flavour violating decays B 0→ K* 0 τ±μ∓ is presented. The analysis is performed using a sample of proton-proton collision data, collected with the LHCb detector at centre-of-mass energies of 7, 8 and 13 TeV between 2011 and 2018, corresponding to an integrated luminosity of 9 fb− 1. No significant signal is observed, and upper limits on the branching fractions are determined to be and at the 90%(95%) confidence level.

Precision Measurement of Violation in the Penguin-Mediated Decay

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,P Adlarson,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dimitra Andreou,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,IB Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,JJ Back,Aurelien Bailly-Reyre,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Varvara Batozskaya,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Andrew Beiter,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Nicolo Vladi Biesuz,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Michele Piero Blago,Thomas Blake,Frederic Blanc,Jonah Evan Blank,Steven Blusk,Dana Bobulska,VB Bocharnikov,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,CS Bolognani,Riccardo Bolzonella,Nikolay Bondar,Federica Borgato,Silvia Borghi,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Nils Breer,Jolanta Brodzicka,A Brossa Gonzalo,J Brown,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Marta Calvi,M Calvo Gomez,Pierluigi Campana,DH Campora Perez,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Roberta Cardinale,Alessandro Cardini,Paolo Carniti,L Carus,A Casais Vidal,Rowina Caspary

Journal

Physical review letters

Published Date

2023/10/23

A flavor-tagged time-dependent angular analysis of the decay B s 0→ ϕ ϕ is performed using p p collision data collected by the LHCb experiment at the center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb− 1. The C P-violating phase and direct C P-violation parameter are measured to be ϕ s s s s=− 0.042±0.075±0.009 rad and| λ|= 1.004±0.030±0.009, respectively, assuming the same values for all polarization states of the ϕ ϕ system. In these results, the first uncertainties are statistical and the second systematic. These parameters are also determined separately for each polarization state, showing no evidence for polarization dependence. The results are combined with previous LHCb measurements using p p collisions at center-of-mass energies of 7 and 8 TeV, yielding ϕ s s s s=− 0.074±0.069 rad and| λ|= 1.009±0.030. This is the most precise study of time-dependent C P violation …

Multidifferential study of identified charged hadron distributions in -tagged jets in proton-proton collisions at

Authors

R Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,S Bachmann,Marie Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,N Bondar,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero,V Cavallini

Journal

Physical Review D

Published Date

2023/8/4

Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a Z boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20< p T< 100 GeV and in the pseudorapidity range 2.5< η< 4. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb− 1. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization …

Structure effects of Pt 15 clusters for the oxygen reduction reaction: first-principles calculations

Authors

Peter L Rodríguez-Kessler,Alvaro Muñoz-Castro,Adán R Rodríguez-Domínguez,José Luis Cabellos

Journal

Physical Chemistry Chemical Physics

Published Date

2023

In the present work, the lowest energy structures and electronic properties of Pt15 clusters are investigated using molecular dynamics simulations. The results showed that the most stable configuration is a capped pyramidal structure, which is 0.8 kal mol−1 lower in energy than a layered structure previously reported [V. Kumar and Y. Kawazoe, Evolution of Atomic and Electronic Structure of Pt Clusters: Planar, Layered, Pyramidal, Cage, Cubic, and Octahedral Growth, Phys. Rev. B: Condens. Matter Mater. Phys., 2008, 77, 205418.]. The result is further confirmed by using both the PW91/cc-pVDZ-PP and PBE/PW approaches including the other representative isomers for Pt15. Due to the interesting structure arrangements found, we have investigated the catalytic activities for the oxygen reduction reaction. We found that the most stable Pt15 clusters are plausible catalyts for the ORR according to their interaction with …

Identification and reconstruction of low-energy electrons in the ProtoDUNE-SP detector

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,M Adamowski,D Adams,M Adinolfi,C Adriano,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Aimard,F Akbar,K Allison,S Alonso Monsalve,M Alrashed,C Alt,A Alton,R Alvarez,P Amedo,J Anderson,DA Andrade,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,WL Anicézio Campanelli,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,L Arellano,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,GJ Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,C Batchelor,JBR Battat,F Battisti,F Bay,MCQ Bazetto,JLL Bazo Alba,JF Beacom,E Bechetoille,B Behera,E Belchior,L Bellantoni,G Bellettini,V Bellini,O Beltramello,N Benekos,C Benitez Montiel,D Benjamin,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,A Bersani,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,Y Bezawada,AT Bezerra,TJ Bezerra,J Bhambure,A Bhardwaj,V Bhatnagar,M Bhattacharjee,D Bhattarai,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,V Bisignani,A Bitadze,A Blake,FD Blaszczyk,GC Blazey,D Blend,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,C Bonilla-Diaz,F Bonini,A Booth,F Boran,S Bordoni,A Borkum,N Bostan,P Bour,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,C Brew,SJ Brice,C Brizzolari,C Bromberg,J Brooke,A Bross,G Brunetti,M Brunetti,N Buchanan

Journal

Physical Review D

Published Date

2023/5/30

Measurements of electrons from ν e interactions are crucial for the Deep Underground Neutrino Experiment (DUNE) neutrino oscillation program, as well as searches for physics beyond the standard model, supernova neutrino detection, and solar neutrino measurements. This article describes the selection and reconstruction of low-energy (Michel) electrons in the ProtoDUNE-SP detector. ProtoDUNE-SP is one of the prototypes for the DUNE far detector, built and operated at CERN as a charged particle test beam experiment. A sample of low-energy electrons produced by the decay of cosmic muons is selected with a purity of 95%. This sample is used to calibrate the low-energy electron energy scale with two techniques. An electron energy calibration based on a cosmic ray muon sample uses calibration constants derived from measured and simulated cosmic ray muon events. Another calibration technique makes …

First observation of a doubly charged tetraquark and its neutral partner

Authors

R Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,P Adlarson,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,S Bachmann,Marie Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Bernet Andres,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal

Journal

Physical review letters

Published Date

2023/7/27

A combined amplitude analysis is performed for the decays B 0→ DD 0 s+ π− and B+→ D− D s+ π+, which are related by isospin symmetry. The analysis is based on data collected by the LHCb detector in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV. The full data sample corresponds to an integrated luminosity of 9 fb− 1. Two new resonant states with masses of 2.908±0.011±0.020 GeV and widths of 0.136±0.023±0.013 GeV are observed, which decay to D s+ π+ and D s+ π− respectively. The former state indicates the first observation of a doubly charged open-charm tetraquark state with minimal quark content [c s u d], and the latter state is a neutral tetraquark composed of [c s u d] quarks. Both states are found to have spin-parity of 0+, and their resonant parameters are consistent with each other, which suggests that they belong to an isospin triplet.

Search for in decays

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,P Adlarson,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dimitra Andreou,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Irene Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,JJ Back,Aurelien Bailly-Reyre,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,Ivanildo Rui Barbosa,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Bernet Andres,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,J Bhom,L Bian,MS Bieker,NV Biesuz,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,VB Bocharnikov,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,N Breer,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,M Calvi,M Calvo Gomez,P Campana,DH Perez,AF Quezada,S Capelli,L Capriotti,A Carbone,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal,R Caspary

Journal

The European Physical Journal C

Published Date

2023/7

The very rare decay is searched for by analysing decays. The analysis uses a sample of beauty mesons produced in proton–proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9\(\text {\, fb}^{-1}\). The signal signature corresponds to simultaneous peaks in the and invariant masses. No evidence for an excess of events over background is observed and an upper limit is set on the branching fraction of the decay at at confidence level. This is the first limit on the branching fraction of decays and the most stringent limit on decays to leptonic final states. The analysis is the first search for a rare charm-meson decay exploiting production via beauty decays.

Measurement of the mass difference and relative production rate of the and baryons

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,P Adlarson,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,P Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dimitra Andreou,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Elie Aslanides,Michele Atzeni,Benjamin Audurier,IB Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,JJ Back,Aurelien Bailly-Reyre,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Andrew Beiter,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Nicolo Vladi Biesuz,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Michele Piero Blago,Thomas Blake,Frederic Blanc,Jonah Evan Blank,Steven Blusk,Dana Bobulska,VB Bocharnikov,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,CS Bolognani,Riccardo Bolzonella,Nikolay Bondar,Federica Borgato,Silvia Borghi,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Nils Breer,Jolanta Brodzicka,A Brossa Gonzalo,J Brown,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Marta Calvi,M Calvo Gomez,Pierluigi Campana,DH Campora Perez,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Roberta Cardinale,Alessandro Cardini,Paolo Carniti,L Carus,A Casais Vidal,Rowina Caspary,Gianluigi Casse

Journal

Physical Review D

Published Date

2023/9/18

The mass difference between the Ω b− and Ξ b− baryons is measured using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb− 1, and is found to be m (Ω b−)− m (Ξ b−)= 248.54±0.51 (stat)±0.38 (syst) MeV/c 2. The mass of the Ω b− baryon is measured to be m (Ω b−)= 6045.9±0.5 (stat)±0.6 (syst) MeV/c 2. This is the most precise determination of the Ω b− mass to date. In addition, the production rate of Ω b− baryons relative to that of Ξ b− baryons is measured for the first time in p p collisions, using an LHCb dataset collected at a center-of-mass energy of 13 TeV and corresponding to an integrated luminosity of 6 fb− 1. Reconstructing beauty baryons in the kinematic region 2< η< 6 and p T< 20 GeV/c with their decays to a J/ψ meson and a hyperon, the ratio f Ω b− f Ξ b−× B (Ω b−→ J/ψ Ω−) B (Ξ b−→ J/ψ Ξ−)= 0.120±0.008 (stat)±0.008 (syst), is obtained …

Measurement of lepton universality parameters in and decays

Authors

R Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,P Adlarson,H Afsharnia,C Agapopoulou,CA Aidala,Z Ajaltouni,S Akar,K Akiba,P Albicocco,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,IB Bachiller Perea,S Bachmann,M Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Benane,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,S Bernet Andres,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse

Journal

Physical Review D

Published Date

2023/8/2

A simultaneous analysis of the B+→ K+ ℓ+ ℓ− and B 0→ K* 0 ℓ+ ℓ− decays is performed to test muon-electron universality in two ranges of the square of the dilepton invariant mass, q 2. The measurement uses a sample of beauty meson decays produced in proton-proton collisions collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 fb− 1. A sequence of multivariate selections and strict particle identification requirements produce a higher signal purity and a better statistical sensitivity per unit luminosity than previous LHCb lepton universality tests using the same decay modes. Residual backgrounds due to misidentified hadronic decays are studied using data and included in the fit model. Each of the four lepton universality measurements reported is either the first in the given q 2 interval or supersedes previous LHCb measurements. The results are compatible …

Observation of sizeable contribution to decays

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,S Aiola,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Ao,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,A Bailly-Reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero,V Cavallini,S Celani

Journal

Physical Review D

Published Date

2023/7/27

Resonant structures in the dipion mass spectrum from χ c 1 (3872)→ π+ π− J/ψ decays, produced via B+→ K+ χ c 1 (3872) decays, are analyzed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb− 1. A sizeable contribution from the isospin conserving χ c 1 (3872)→ ω J/ψ decay is established for the first time,(21.4±2.3±2.0)%, with a significance of more than 7.1 σ. The amplitude of isospin violating decay, χ c 1 (3872)→ ρ 0 J/ψ, relative to isospin conserving decay, χ c 1 (3872)→ ω J/ψ, is properly determined, and it is a factor of 6 larger than expected for a pure charmonium state.

Centrality determination in heavy-ion collisions with the LHCb detector

Authors

Roel Aaij,C Abellán Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bitadze,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,M Brodski,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,L Calero Diaz,S Cali,R Calladine,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,G Carboni,A Cardini,I Carli,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,AJ Chadwick,MG Chapman,M Charles,Ph Charpentier,G Chatzikonstantinidis,CA Chavez Barajas,M Chefdeville,C Chen,S Chen,A Chernov,V Chobanova,S Cholak,M Chrzaszcz,A Chubykin,V Chulikov,P Ciambrone,MF Cicala,X Cid Vidal,G Ciezarek,PEL Clarke,M Clemencic

Journal

Journal of Instrumentation

Published Date

2022/5/5

In the context of heavy-ion collision, centrality is a quantity of relevance since it is directly related to the overlap region between the two nuclei in a collision. Centrality gives access to the number of nucleons participating in the collision (????part) as well as the number of binary nucleon-nucleon collisions (????coll), which are useful quantities to compare data from different experiments, different collision systems and to theoretical calculations. The centrality of a collision, defined as the percentile of the total inelastic nucleus-nucleus collision cross-section, is characterised by the impact parameter (????) between the two nuclei, ie the distance between their centres in the plane transverse to the beam

Relative Populations and IR Spectra of Cu38 Cluster at Finite Temperature Based on DFT and Statistical Thermodynamics Calculations

Authors

Carlos Emiliano Buelna-García,Cesar Castillo-Quevedo,Jesus Manuel Quiroz-Castillo,Edgar Paredes-Sotelo,Manuel Cortez-Valadez,Martha Fabiola Martin-del-Campo-Solis,Tzarara López-Luke,Marycarmen Utrilla-Vázquez,Ana Maria Mendoza-Wilson,Peter L Rodríguez-Kessler,Alejandro Vazquez-Espinal,Sudip Pan,Aned de Leon-Flores,Jhonny Robert Mis-May,Adán R Rodríguez-Domínguez,Gerardo Martínez-Guajardo,Jose Luis Cabellos

Journal

Frontiers in Chemistry

Published Date

2022/3/1

The relative populations of Cu38 isomers depend to a great extent on the temperature. Density functional theory and nanothermodynamics can be combined to compute the geometrical optimization of isomers and their spectroscopic properties in an approximate manner. In this article, we investigate entropy-driven isomer distributions of Cu38 clusters and the effect of temperature on their IR spectra. An extensive, systematic global search is performed on the potential and free energy surfaces of Cu38 using a two-stage strategy to identify the lowest-energy structure and its low-energy neighbors. The effects of temperature on the populations and IR spectra are considered via Boltzmann factors. The computed IR spectrum of each isomer is multiplied by its corresponding Boltzmann weight at finite temperature. Then, they are summed together to produce a final temperature-dependent, Boltzmann-weighted spectrum. Our results show that the disordered structure dominates at high temperatures and the overall Boltzmann-weighted spectrum is composed of a mixture of spectra from several individual isomers.

Identification of charm jets at LHCb

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellán Beteta,FJ Abudinen Gallego,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Daniel Cervenkov,Abbie Jane Chadwick

Journal

Journal of Instrumentation

Published Date

2022/2/22

Identification of charm jets, ie those originating from the hadronisation of a charm quark, is of interest in both the study of Standard Model (SM) processes and the search for new physics. For example, the production of events containing a ???? boson and a ???? jet in the forward region provides a direct probe of the charm content of the proton at large parton momentum fractions [1, 2]. Such studies rely upon algorithms capable of distinguishing charm jets from beauty and light-parton jets. An algorithm for identifying both charm and beauty jets reconstructed by the LHCb detector has been used for studies of the dataset recorded in 2011–2012 (Run 1)[3]. However, the higher particle multiplicity of 2015–2018 (Run 2) data has been found to degrade its performance [4]. Furthermore, for measurements that only involve charm jets, it is possible to achieve better performance using a dedicated charm-tagging algorithm.Charm …

arXiv: A Gaseous Argon-Based Near Detector to Enhance the Physics Capabilities of DUNE

Authors

A Abed Abud,A Friedland,M Smy,P Hamacher-Baumann,Z Djurcic,E Goudzovski,D Totani,E Mazzucato,C Densham,B Russell,E Calvo,P Green,A Penzo,D Shooltz,L Singh,J Crnkovic,P Vahle,CS Mishra,J Smolik,MA Acero,H Meyer,DH Koh,D Moretti,G Cerati,M Adamowski,J Zennamo,AS Dyshkant,R Gran,J Stewart,D Marfatia,T Patzak,K Yonehara,JBR Battat,D Kwak,P Dunne,C Brizzolari,K Cho,G Lehmann Miotto,H Newton,C Mariani,S Vallecorsa,S Prakash,IK Furic,A Gabrielli,A Ankowski,PC De Holanda,A Barros,C Benitez Montiel,S Sacerdoti,E Smith,P Keener,X Wang,V Pec,O Palamara,L Strigari,J Brooke,P Rosier,P Lasorak,CA Moura,MA Delgado,E Guerard,W Ketchum,C Petta,G Miller,Z Hulcher,DA Dwyer,LW Koerner,J Maalmi,B Szczerbinska,V Tishchenko,A Thea,JRT de Mello Neto,T Gamble,J Matthews,K Moffat,F Muheim,M Chen,L Di Giulio,F Battisti,R Cross,T Cai,GC Blazey,P Novella,B Howard,S Prince,V Ayala Lara,N Talukdar,A Laundrie,L Suter,MHLS Wang,A Robert,FDM Blaszczyk,J Kvasnicka,X Ji,Y Onel,J Nesbit,H Duyang,A De Roeck,J Franc,A Gago,D Last,K Nishimura,JWF Valle,V Papadimitriou,Y Suvorov,C Thorn,S Uzunyan,S Manly,F Matichard,D Carber,L Paulucci,T Junk,S Copello,F Di Capua,R Mohanta,G Barr,P Gauzzi,B Lunday,S Dolan,SD Reitzner,LS Fajardo,F Psihas,J Heise,S Antusch,P Clarke,S Miryala,H Mendez,L Rochester,K Fahey,C Mossey,L Kolupaeva,N Samios,N Gallice,E Pennacchio,X Qian,E Parozzi,D Torbunov,S Rosauro-Alcaraz,C Wret,M Fernandez Morales,O Goodwin,M Worcester,N McConkey,S Gent,A Gallego-Ros,MP Decowski,M Kirby,ED Zimmerman,A Surdo,L Da Silva Peres

Published Date

2022/3/11

The Deep Underground Neutrino Experiment (DUNE) is a next-generation international particle physics experiment seeking to answer fundamental questions about the neutrino. It will use a new high-intensity neutrino beam that will be generated at the US Department of Energy’s Fermi National Accelerator Laboratory (Fermilab). The experiment will consist of a far detector (FD) located approximately 1.5 km underground at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, at a distance of 1285 km from Fermilab, and a near detector (ND) that will be located on the Fermilab site in Illinois. The FD will consist of a large, modular liquid-argon time projection chamber (LArTPC) with a fiducial mass of roughly 40 kt (total mass of 68 kton).The reference ND will be located approximately 574 m from DUNE’s neutrino target, which is the starting point for the Long-Baseline Neutrino Facility (LBNF) beam. The conceptual design for the DUNE ND is described in detail in Ref.[2]. The reference ND design consists of several different components shown in Fig. 1: an upstream modular non-magnetized LArTPC (ND-LAr), a magnetized tracker containing a pressurized gaseous-argon time projection chamber (ND-GAr), and a large, magnetized tracking spectrometer (SAND). SAND will remain fixed on the beam axis, while ND-LAr and ND-GAr will move transverse to the beam to collect data at various off-axis positions, providing different neutrino energy spectra by the PRISM concept [3]. In a conventional neutrino beam, the peak energy of the neutrino spectrum decreases and the size of the high energy tail is reduced when the detection …

Structural and electronic properties for Be-doped Pt n (n= 1–12) clusters obtained by DFT calculations

Authors

Peter L Rodríguez-Kessler,Adán R Rodríguez-Domínguez,Pedro Alonso-Dávila,Pedro Navarro-Santos,Alvaro Muñoz-Castro

Journal

Physical Chemistry Chemical Physics

Published Date

2022

In this work, we have performed a computational study on the structure and electronic properties for Be-doped Ptn (n = 1–12) clusters in the framework of density functional theory (DFT). The most stable structures of the clusters are obtained by a structure search procedure based in simulated annealing. The results show that the PtnBe clusters adopt compact structure motifs with Be situated at the edge sites while only in Pt11Be the Be atom occupies the center site. The energetic parameters showed that Pt5Be, Pt7Be and Pt10Be are the most stable ones. The PtnBe clusters with (n = 5–7) have similar vertical ionization potential (vIP) and vertical electron affinity (vEA) parameters compared to the unary Pt clusters, while Pt9Be and Pt11Be have the higher vEA values. In particular, the d-band center is slightly higher for the doped clusters, suggesting an enhanced reactivity. The σ-holes are found more remarkable for …

Measurement of the Nuclear Modification Factor and Prompt Charged Particle Production in -Pb and Collisions at

Authors

Roel Aaij,C Abellan Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista Leite,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,M Brodski,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,AJ Chadwick,MG Chapman,M Charles,Ph Charpentier,G Chatzikonstantinidis,CA Chavez Barajas,M Chefdeville,C Chen

Journal

Physical review letters

Published Date

2022/4/7

The production of prompt charged particles in proton-lead collisions and in proton-proton collisions at the nucleon-nucleon center-of-mass energy s N N= 5 TeV is studied at LHCb as a function of pseudorapidity (η) and transverse momentum (p T) with respect to the proton beam direction. The nuclear modification factor for charged particles is determined as a function of η between− 4.8< η<− 2.5 (backward region) and 2.0< η< 4.8 (forward region), and p T between 0.2< p T< 8.0 GeV/c. The results show a suppression of charged particle production in proton-lead collisions relative to proton-proton collisions in the forward region and an enhancement in the backward region for p T larger than 1.5 GeV/c. This measurement constrains nuclear PDFs and saturation models at previously unexplored values of the parton momentum fraction down to 10− 6.

First Measurement of the Angular Coefficients in the Forward Region of Collisions at

Authors

R Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,G Alkhazov,P Alvarez Cartelle,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,R Caspary,G Casse,M Cattaneo

Journal

Physical Review Letters

Published Date

2022/8/24

The first study of the angular distribution of μ+ μ− pairs produced in the forward rapidity region via the Drell-Yan reaction p p→ γ*/Z+ X→ ℓ+ ℓ−+ X is presented, using data collected with the LHCb detector at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.1 fb− 1. The coefficients of the five leading terms in the angular distribution are determined as a function of the dimuon transverse momentum and rapidity. The results are compared to various theoretical predictions of the Z-boson production mechanism and can also be used to probe transverse-momentum-dependent parton distributions within the proton.

A comparison of CPU and GPU implementations for the LHCb Experiment Run 3 Trigger

Authors

R Aaij,Marta Adinolfi,Salvatore Aiola,S Akar,J Albrecht,M Alexander,S Amato,Yasmine Amhis,F Archilli,M Bala,G Bassi,L Bian,MP Blago,T Boettcher,A Boldyrev,S Borghi,A Brea Rodriguez,Lukas Calefice,M Calvo Gomez,DH Cámpora Pérez,A Cardini,Marco Cattaneo,V Chobanova,G Ciezarek,X Cid Vidal,JL Cobbledick,JAB Coelho,Tommaso Colombo,A Contu,Benjamin Couturier,Daniel C Craik,R Currie,P d’Argent,Michel De Cian,Denis Derkach,F Dordei,Marco Dorigo,L Dufour,Paolo Durante,A Dziurda,A Dzyuba,S Easo,S Esen,P Fernandez Declara,S Filippov,Conor Fitzpatrick,M Frank,Paolo Gandini,Vladimir V Gligorov,Elisabet Golobardes,G Graziani,L Grillo,PA Günther,S Hansmann-Menzemer,Arthur M Hennequin,Louis Henry,D Hill,SE Hollitt,J Hu,W Hulsbergen,RJ Hunter,Mikhail Hushchyn,Brij Kishor Jashal,Christopher Robert Jones,S Klaver,Konrad Klimaszewski,R Kopecna,Wojciech Krzemien,Marcin Kucharczyk,R Lane,F Lazzari,R Le Gac,P Li,JH Lopes,M Lucio Martinez,A Lupato,Oliver Lupton,X Lyu,F Machefert,O Madejczyk,S Malde,JF Marchand,S Mariani,C Marin Benito,D Martinez Santos,F Martinez Vidal,R Matev,Michal Mazurek,B Mitreska,DS Mitzel,MJ Morello,H Mu,P Muzzetto,P Naik,M Needham,N Neri,Niko Neufeld,NS Nolte,Daniel O’Hanlon,A Oyanguren,M Pepe Altarelli,S Petrucci,Marco Petruzzo,L Pica,Flavio Pisani,A Piucci,Francesco Polci,A Poluektov,E Polycarpo,C Prouve,Giovanni Punzi,Renato Quagliani,RI Rabadan Trejo,M Ramos Pernas,MS Rangel,Fedor Ratnikov,G Raven,F Reiss,V Renaudin,P Robbe,Artem Ryzhikov,Marco Santimaria,M Saur,M Schiller,Rainer Schwemmer,Barbara Sciascia,A Solomin,F Suljik,N Skidmore,Michael D Sokoloff,P Spradlin,M Stahl,S Stahl,H Stevens,L Sun,A Szabelski,Tomasz Szumlak,M Szymanski,DY Tou,G Tuci,A Usachov,N Valls Canudas,R Vazquez Gomez,Stefania Vecchi,Mika Vesterinen,Xavier Vilasis-Cardona,D Vom Bruch,Z Wang,Tomasz Wojton,Mark Whitehead

Journal

Computing and Software for Big Science

Published Date

2022/12

The Large Hadron Collider beauty (LHCb) experiment at CERN is undergoing an upgrade in preparation for the Run 3 data collection period at the Large Hadron Collider (LHC). As part of this upgrade, the trigger is moving to a full software implementation operating at the LHC bunch crossing rate. We present an evaluation of a CPU-based and a GPU-based implementation of the first stage of the high-level trigger. After a detailed comparison, both options are found to be viable. This document summarizes the performance and implementation details of these options, the outcome of which has led to the choice of the GPU-based implementation as the baseline.

Measurement of the charm mixing parameter using two-body meson decays

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinen,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero,S Celani

Journal

Physical Review D

Published Date

2022/5/25

A measurement of the ratios of the effective decay widths of D 0→ π− π+ and D 0→ K− K+ decays over that of D 0→ K− π+ decays is performed with the LHCb experiment using proton–proton collisions at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb− 1. These observables give access to the charm mixing parameters y C P π π− y C P K π and y C P K K− y C P K π, and are measured as y C P π π− y C P K π=(6.57±0.53±0.16)× 10− 3, y C P K K− y C P K π=(7.08±0.30±0.14)× 10− 3, where the first uncertainties are statistical and the second systematic. The combination of the two measurements is y C P− y C P K π=(6.96±0.26±0.13)× 10− 3, which is four times more precise than the previous world average.

Observation of the doubly charmed baryon decay

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,F Abudinen,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Nicolo Vladi Biesuz,Simone Bifani,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Rowina Caspary,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani

Journal

Journal of High Energy Physics

Published Date

2022/5

The decay is observed using proton-proton collisions collected by the LHCb experiment at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5. 4 fb− 1. The decay is reconstructed partially, where the photon from the decay is not reconstructed and the pK− π+ final state of the baryon is employed. The branching fraction relative to that of the decay is measured to be 1. 41±0. 17±0. 10, where the first uncertainty is statistical and the second systematic.

arXiv: Snowmass Neutrino Frontier: DUNE Physics Summary

Authors

A Abed Abud,A Friedland,M Smy,P Hamacher-Baumann,Z Djurcic,E Goudzovski,D Totani,E Mazzucato,C Densham,B Russell,E Calvo,P Green,A Penzo,D Shooltz,L Singh,J Crnkovic,P Vahle,CS Mishra,J Smolik,MA Acero,H Meyer,DH Koh,D Moretti,G Cerati,M Adamowski,J Zennamo,AS Dyshkant,R Gran,J Stewart,D Marfatia,T Patzak,K Yonehara,JBR Battat,D Kwak,P Dunne,C Brizzolari,K Cho,G Lehmann Miotto,H Newton,C Mariani,S Vallecorsa,S Prakash,IK Furic,A Gabrielli,A Ankowski,PC De Holanda,A Barros,C Benitez Montiel,S Sacerdoti,E Smith,P Keener,X Wang,V Pec,O Palamara,L Strigari,J Brooke,P Rosier,P Lasorak,CA Moura,MA Delgado,E Guerard,W Ketchum,C Petta,G Miller,Z Hulcher,DA Dwyer,LW Koerner,J Maalmi,B Szczerbinska,V Tishchenko,A Thea,JRT de Mello Neto,T Gamble,J Matthews,K Moffat,F Muheim,M Chen,L Di Giulio,F Battisti,R Cross,T Cai,GC Blazey,P Novella,B Howard,S Prince,V Ayala Lara,N Talukdar,A Laundrie,L Suter,MHLS Wang,A Robert,FDM Blaszczyk,J Kvasnicka,X Ji,Y Onel,J Nesbit,H Duyang,A De Roeck,J Franc,A Gago,D Last,K Nishimura,JWF Valle,V Papadimitriou,Y Suvorov,C Thorn,S Uzunyan,S Manly,F Matichard,D Carber,L Paulucci,T Junk,S Copello,F Di Capua,R Mohanta,G Barr,P Gauzzi,B Lunday,S Dolan,SD Reitzner,LS Fajardo,F Psihas,J Heise,S Antusch,P Clarke,S Miryala,H Mendez,L Rochester,K Fahey,C Mossey,L Kolupaeva,N Samios,N Gallice,E Pennacchio,X Qian,E Parozzi,D Torbunov,S Rosauro-Alcaraz,C Wret,M Fernandez Morales,O Goodwin,M Worcester,N McConkey,S Gent,A Gallego-Ros,MP Decowski,M Kirby,ED Zimmerman,A Surdo,L Da Silva Peres

Published Date

2022/3/11

The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment with a primary physics goal of observing neutrino and antineutrino oscillation patterns to precisely measure the parameters governing long-baseline neutrino oscillation in a single experiment, and to test the three-flavor paradigm. DUNE’s design has been developed by a large, international collaboration of scientists and engineers to have unique capability to measure neutrino oscillation as a function of energy in a broadband beam, to resolve degeneracy among oscillation parameters, and to control systematic uncertainty using the exquisite imaging capability of massive LArTPC far detector modules and an argon-based near detector. DUNE’s neutrino oscillation measurements will unambiguously resolve the neutrino mass ordering and provide the sensitivity to discover CP violation in neutrinos for a wide range of possible values of δCP. DUNE is also uniquely sensitive to electron neutrinos from a galactic supernova burst, and to a broad range of physics beyond the Standard Model (BSM), including nucleon decays. DUNE is anticipated to begin collecting physics data with Phase I, an initial experiment configuration consisting of two far detector modules and a minimal suite of near detector components, with a 1.2 MW proton beam. In Phase I, DUNE will be able to quickly and unambiguously determine the neutrino mass ordering, a capability that is unique among existing and planned experiments, observe CP violation with 3σ significance if δCP=-π/2, measure other oscillation parameters including∆ m2 32 with world …

Evidence for a New Structure in the and Systems in Decays

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,M Brodski,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,D Cervenkov,AJ Chadwick,MG Chapman,M Charles

Journal

Physical review letters

Published Date

2022/2/7

An amplitude analysis of flavor-untagged B s 0→ J/ψ p p decays is performed using a sample of 797±31 decays reconstructed with the LHCb detector. The data, collected in proton-proton collisions between 2011 and 2018, correspond to an integrated luminosity of 9 fb− 1. Evidence for a new structure in the J/ψ p and J/ψ p systems with a mass of 4337− 4+ 7− 2+ 2 MeV and a width of 29− 12+ 26− 14+ 14 MeV is found, where the first uncertainty is statistical and the second systematic, with a significance in the range of 3.1 to 3.7 σ, depending on the assigned J P hypothesis.

Measurement of the W boson mass

Authors

Leite J Baptista,I Bediaga,Torres M Cruz,JM De Miranda,AC dos Reis,A Gomes,A Massafferri,Machado D Torres,S Amato,L De Paula,Rodrigues F Ferreira,M Gandelman,A Hicheur,JH Lopes,Garcia L Meyer,I Nasteva,Goicochea JM Otalora,E Polycarpo,MS Rangel,De Almeida FL Souza,De Paula B Souza,C Chen,C Dong,J Fan,Y Gan,G Gong,C Gu,X Hu,F Jiang,Y Kang,Y Luo,H Mu,H Qi,N Qin,Z Ren,J Wang,M Wang,Z Wang,L Xu,D Yang,M Zeng,L Zhang,X Zhu,I Carli,S Chen,NA Grieser,Y Li,S Liu,Y Lu,L Ma,M Tobin,Q Zou,Y Gao,Y Shang,Z Shen,X Tong,A Xu,Z Xu,Z Yang,S Zhang,Y Zhang,T Zhou,Quezada AF Campoverde,Y Fan,J He,Y Hou,W Huang,H Liu,X Lyu,R Ma,D Popov,W Qian,J Qin,Trejo RI Rabadan,Z Xiang,J Xu,Q Xu,S Yang,Y Yang,Y Zheng,X Zhou,Y Zhou,Z Zhu,Q Han,R Hou,W Hu,S Li,Y Wang,D Xiao,Y Xie,M Xu,H Yin,D Zhang,M Chefdeville,D Decamp,AG Downes,P Ghez,JF Marchand,MN Minard,C Normand,B Pietrzyk,B Quintana,M Reboud,S T'Jampens,H Afsharnia,Z Ajaltouni,E Cogneras,O Deschamps,R Lefèvre,J Maratas,S Monteil,P Perret,H Sazak,Lavra L Soares,V Tisserand,E Aslanides,J Cerasoli,J Cogan,V Dedu,D Gerstel,R Le Gac,O Leroy,G Mancinelli,PK Resmi,A Poluektov,D Vom Bruch,Y Amhis,S Barsuk,JAB Coelho,F Desse,M Guittiere,F Machefert,EM Niel,V Puill,P Robbe,MH Schune,Y Shimizu,FC Volle,G Wormser,V Zhovkovska,B Audurier,V Balagura,F Fleuret,Rosales FA Garcia,E Maurice,C Agapopoulou,E Ben-Haim,P Billoir,L Calefice,M Charles

Journal

Journal of High Energy Physics

Published Date

2022

Measurement of the W boson mass КОРЗИНА ПОИСК НАВИГАТОР СЕССИЯ КОНТАКТЫ ИНФОРМАЦИЯ О ПУБЛИКАЦИИ eLIBRARY ID: 48143414 EDN: RQIRMY DOI: 10.1007/JHEP01(2022)036 MEASUREMENT OF THE W BOSON MASS BAPTISTA LEITE J. , BEDIAGA I. , CRUZ TORRES M. , DE MIRANDA JM 1 , DOS REIS AC 1 , GOMES A. , MASSAFFERRI A. , TORRES MACHADO D. , AMATO S. , DE PAULA L. , FERREIRA RODRIGUES F. , GANDELMAN M. , HICHEUR A. , LOPES JH 3 , MEYER GARCIA L. , NASTEVA I. , OTALORA GOICOCHEA JM 3 , POLYCARPO E. , RANGEL MS 3 , SOUZA DE ALMEIDA FL 3 , SOUZA DE PAULA B. , CHEN C. , DONG C. , FAN J. , GAN Y. , GONG G. , GU C. , HU X. , JIANG F. , KANG Y. , LUO Y. , MU H. , QI H. , QIN N. , REN Z. , WANG J. , WANG M. , WANG Z. , XU L. , YANG D. , ZENG M. , ZHANG L. , ZHU X. , CARLI I. , CHEN S. , GRIESER NA 5 , LI Y. , LIU S. , LU Y. , …

Study of charmonium and charmonium-like contributions in B+→ J/ψηK+ decays

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Dong Ao,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Nicolo Vladi Biesuz,Simone Bifani,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Olga Boiarkina,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Rowina Caspary,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero

Journal

Journal of High Energy Physics

Published Date

2022/4

A study of B+→ J/ψηK+ decays, followed by J/ψ→ μ+ μ− and η→ γγ, is performed using a dataset collected with the LHCb detector in proton-proton collisions at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 9 fb− 1. The J/ψη mass spectrum is investigated for contributions from charmonia and charmonium-like states. Evidence is found for the B+→(ψ 2 (3823)→ J/ψη) K+ and B+→(ψ (4040)→ J/ψη) K+ decays with significance of 3.4 and 4.7 standard deviations, respectively. This constitutes the first evidence for the ψ 2 (3823)→ J/ψη decay.

Observation of → D+pπ−π− and → D*+pπ−π− decays

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero,S Celani

Journal

Journal of High Energy Physics

Published Date

2022/3

The multihadron decays→ D+pπ− π− and→ D*+ pπ− π− are observed in data corresponding to an integrated luminosity of 3 fb− 1, collected in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV by the LHCb detector. Using the decay→ π+ π− π− as a normalisation channel, the ratio of branching fractions is measured to be

Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,M Adamowski,D Adams,M Adinolfi,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Aimard,B Ali-Mohammadzadeh,T Alion,K Allison,S Alonso Monsalve,M AlRashed,C Alt,A Alton,R Alvarez,P Amedo,J Anderson,C Andreopoulos,M Andreotti,M Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,L Arellano,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,V Ayala Lara,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,P Barham Alzas,G Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,C Batchelor,E Chagas,JBR Battat,F Battisti,F Bay,MCQ Bazetto,JLL Alba,JF Beacom,E Bechetoille,B Behera,C Beigbeder,L Bellantoni,G Bellettini,V Bellini,O Beltramello,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,Roman Matthias Berner,A Bersani,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,Y Bezawada,TJC Bezerra,A Bhardwaj,V Bhatnagar,M Bhattacharjee,D Bhattarai,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,F Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,M Bongrand,C Bonilla-Diaz,F Bonini,A Booth,F Boran,S Bordoni,A Borkum,N Bostan,P Bour,C Bourgeois,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,D Breton,C Brew,SJ Brice,C Brizzolari,C Bromberg,J Brooke,A Bross,G Brunetti,M Brunetti,N Buchanan

Journal

The European Physical Journal C

Published Date

2022/7

DUNE is a dual-site experiment for long-baseline neutrino oscillation studies, neutrino astrophysics and nucleon decay searches. ProtoDUNE Dual Phase (DP) is a 6 6 6 m liquid argon time-projection-chamber (LArTPC) that recorded cosmic-muon data at the CERN Neutrino Platform in 2019–2020 as a prototype of the DUNE Far Detector. Charged particles propagating through the LArTPC produce ionization and scintillation light. The scintillation light signal in these detectors can provide the trigger for non-beam events. In addition, it adds precise timing capabilities and improves the calorimetry measurements. In ProtoDUNE-DP, scintillation and electroluminescence light produced by cosmic muons in the LArTPC is collected by photomultiplier tubes placed up to 7 m away from the ionizing track. In this paper, the ProtoDUNE-DP photon detection system performance is evaluated with a particular focus on the …

Study of the decay

Authors

LHCb Collaboration

Journal

arXiv preprint arXiv:2211.00812

Published Date

2022/11/2

The decay is studied in proton-proton collisions at a center-of-mass energy of TeV using data corresponding to an integrated luminosity of 5 collected by the LHCb experiment. In the system, the state observed at the BaBar and Belle experiments is resolved into two narrower states, and , whose masses and widths are measured to be $$ m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV}, $$ where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt sample. Evidence of a new state is found with a local significance of , whose mass and width are measured to be and , respectively. In addition, evidence of a new decay mode is found with a significance of . The relative branching fraction of with respect to the decay is measured to be , where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.

Search for the decay B 0→ ϕμ+ μ−

Authors

LHCb Collaboration

Journal

Journal of High Energy Physics

Published Date

2022/5

A search for the decay B 0→ ϕμ+ μ− is performed using proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV collected by the LHCb experiment and corresponding to an integrated luminosity of 9 fb− 1. No evidence for the B 0→ ϕμ+ μ− decay is found and an upper limit on the branching fraction, excluding the ϕ and charmonium regions in the dimuon spectrum, of 4.4× 10− 3 at a 90% credibility level, relative to that of the Bs0→ ϕμ+ μ− decay, is established. Using the measured Bs0→ ϕμ+ μ− branching fraction and assuming a phase-space model, the absolute branching fraction of the decay B 0→ ϕμ+ μ− in the full q 2 range is determined to be less than 3.2× 10− 9 at a 90% credibility level.[Figure not available: see fulltext.]

Observation of the Decay

Authors

M Ablikim,MN Achasov,S Ahmed,M Albrecht,M Alekseev,A Amoroso,FF An,Q An,Y Bai,O Bakina,R Baldini Ferroli,Y Ban,K Begzsuren,JV Bennett,N Berger,M Bertani,D Bettoni,F Bianchi,J Bloms,I Boyko,RA Briere,H Cai,X Cai,A Calcaterra,GF Cao,N Cao,SA Cetin,J Chai,JF Chang,WL Chang,DY Chen,G Chen,HS Chen,JC Chen,ML Chen,SJ Chen,YB Chen,W Cheng,G Cibinetto,F Cossio,XF Cui,HL Dai,JP Dai,XC Dai,A Dbeyssi,D Dedovich,ZY Deng,A Denig,I Denysenko,M Destefanis,F De Mori,Y Ding,C Dong,J Dong,LY Dong,MY Dong,ZL Dou,SX Du,JZ Fan,J Fang,SS Fang,Y Fang,R Farinelli,L Fava,F Feldbauer,G Felici,CQ Feng,M Fritsch,CD Fu,Y Fu,Q Gao,XL Gao,Y Gao,YG Gao,Z Gao,B Garillon,I Garzia,A Gilman,K Goetzen,L Gong,WX Gong,W Gradl,M Greco,LM Gu,MH Gu,S Gu,YT Gu,AQ Guo,LB Guo,RP Guo,YP Guo,A Guskov,S Han,XQ Hao,FA Harris,KL He,FH Heinsius,T Held,YK Heng,YR Hou,ZL Hou,HM Hu,JF Hu,T Hu,Y Hu,GS Huang,JS Huang,XT Huang,XZ Huang,N Huesken,T Hussain,W Ikegami Andersson,W Imoehl,M Irshad,Q Ji,QP Ji,XB Ji,XL Ji,HL Jiang,XS Jiang,XY Jiang,JB Jiao,Z Jiao,DP Jin,S Jin,Y Jin,T Johansson,N Kalantar-Nayestanaki,XS Kang,R Kappert,M Kavatsyuk,BC Ke,IK Keshk,T Khan,A Khoukaz,P Kiese,R Kiuchi,R Kliemt,L Koch,OB Kolcu,B Kopf,M Kuemmel,M Kuessner,A Kupsc,M Kurth,MG Kurth,W Kühn,JS Lange,P Larin,L Lavezzi

Journal

Physical review letters

Published Date

2019/5/23

Using a total of 9.0 fb− 1 of e+ e− collision data with center-of-mass energies between 4.15 and 4.30 GeV collected by the BESIII detector, we search for the processes e+ e−→ γ X (3872) with X (3872)→ π 0 χ c J for J= 0, 1, 2. We report the first observation of X (3872)→ π 0 χ c 1, a new decay mode of the X (3872), with a statistical significance of more than 5 σ for all systematic fit variations. Normalizing to the previously established process e+ e−→ γ X (3872) with X (3872)→ π+ π− J/ψ, we find B (X (3872)→ π 0 χ c 1)/B (X (3872)→ π+ π− J/ψ)= 0.8 8− 0.27+ 0.33±0.10, where the first error is statistical and the second is systematic. We set 90% confidence level upper limits on the corresponding ratios for the decays to π 0 χ c 0 and π 0 χ c 2 of 19 and 1.1, respectively.

Search for the radiative → Ξ−γ decay

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,Paula Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,M Brodski,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,D Cervenkov,AJ Chadwick,MG Chapman,M Charles

Journal

Journal of High Energy Physics

Published Date

2022/1

The first search for the rare radiative decay→ Ξ− γ is performed using data collected by the LHCb experiment in proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.4 fb− 1. The→ Ξ− J/ψ channel is used as normalization. No→ Ξ− γ signal is found and an upper limit of(→ Ξ− γ)< 1. 3× 10− 4 at 95% confidence level is obtained.

Search for massive long-lived particles decaying semileptonically at

Authors

R Aaij,ASW Abdelmotteleb,C Abellán Beteta,FJ Gallego,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,G Alkhazov,P Alvarez Cartelle,S Amato,JL Amey,Y Amhis,L An,L Anderlini,A Andreianov,M Andreotti,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,S Bashir,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,M Brodski,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,D Cervenkov

Journal

The European Physical Journal C

Published Date

2022/4

A search is performed for massive long-lived particles (LLPs) decaying semileptonically into a muon and two quarks. Two kinds of LLP production processes were considered. In the first, a Higgs-like boson with mass from 30 to 200\(\text {\, GeV\!/} c^ 2\) is produced by gluon fusion and decays into two LLPs. The analysis covers LLP mass values from 10\(\text {\, GeV\!/} c^ 2\) up to about one half the Higgs-like boson mass. The second LLP production mode is directly from quark interactions, with LLP masses from 10 to 90\(\text {\, GeV\!/} c^ 2\). The LLP lifetimes considered range from 5 to 200 ps. This study uses LHCb data collected from proton-proton collisions at\(\sqrt {s}= 13\text {\, TeV}\), corresponding to an integrated luminosity of 5.4\(\text {\, fb}^{-1}\). No evidence of these long-lived states has been observed, and upper limits on the production cross-section times branching ratio have been set for each model …

Analysis of Neutral -Meson Decays into Two Muons

Authors

Roel Aaij,C Abellan Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Alessandro Camboni,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Abbie Jane Chadwick,Matthew George Chapman,Matthew Charles,Ph Charpentier,Georgios Chatzikonstantinidis,CA Chavez Barajas,Maximilien Chefdeville,Chen Chen,Shanzhen Chen

Journal

Physical Review Letters

Published Date

2022/1/25

Branching fraction and effective lifetime measurements of the rare decay B s 0→ μ+ μ− and searches for the decays B 0→ μ+ μ− and B s 0→ μ+ μ− γ are reported using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV, corresponding to a luminosity of 9 fb− 1. The branching fraction B (B s 0→ μ+ μ−)=(3.0 9− 0.43− 0.11+ 0.46+ 0.15)× 10− 9 and the effective lifetime τ (B s 0→ μ+ μ−)= 2.07±0.29±0.03 ps are measured, where the first uncertainty is statistical and the second systematic. No significant signal for B 0→ μ+ μ− and B s 0→ μ+ μ− γ decays is found and upper limits B (B 0→ μ+ μ−)< 2.6× 10− 10 and B (B s 0→ μ+ μ− γ)< 2.0× 10− 9 at the 95% CL are determined, where the latter is limited to the range m μ μ> 4.9 GeV/c 2. The results are in agreement with the standard model expectations.

A Gaseous Argon-Based Near Detector to Enhance the Physics Capabilities of DUNE

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,M Adamowski,D Adams,M Adinolfi,C Adriano,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Aimard,F Akbar,B Ali-Mohammadzadeh,T Alion,K Allison,S Alonso Monsalve,M AlRashed,C Alt,A Alton,R Alvarez,P Amedo,J Anderson,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,L Arellano,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,V Ayala Lara,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,GJ Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,C Batchelor,E Belchior,JBR Battat,F Battisti,F Bay,MCQ Bazetto,JL Alba,JF Beacom,E Bechetoille,B Behera,C Beigbeder,L Bellantoni,G Bellettini,V Bellini,O Beltramello,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,A Bersani,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,Y Bezawada,AT Bezerra,TJC Bezerra,A Bhardwaj,V Bhatnagar,M Bhattacharjee,D Bhattarai,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FDM Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,M Bongrand,C Bonilla-Diaz,F Bonini,A Booth,F Boran,S Bordoni,A Borkum,N Bostan,P Bour,C Bourgeois,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,D Breton,C Brew,SJ Brice,C Brizzolari,C Bromberg,J Brooke,A Bross,G Brunetti

Journal

arXiv preprint arXiv:2203.06281

Published Date

2022/3/11

This document presents the concept and physics case for a magnetized gaseous argon-based detector system (ND-GAr) for the Deep Underground Neutrino Experiment (DUNE) Near Detector. This detector system is required in order for DUNE to reach its full physics potential in the measurement of CP violation and in delivering precision measurements of oscillation parameters. In addition to its critical role in the long-baseline oscillation program, ND-GAr will extend the overall physics program of DUNE. The LBNF high-intensity proton beam will provide a large flux of neutrinos that is sampled by ND-GAr, enabling DUNE to discover new particles and search for new interactions and symmetries beyond those predicted in the Standard Model.

Searches for rare and B0 decays into four muons

Authors

R Aaij,ASW Abdelmotteleb,C Abellán Beteta,F Abudinen,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,G Alkhazov,P Alvarez Cartelle,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,S Bashir,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero,S Celani

Journal

Journal of High Energy Physics

Published Date

2022/3

Searches for rare and B 0 decays into four muons are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb− 1. Direct decays and decays via light scalar and J/ψ resonances are considered. No evidence for the six decays searched for is found and upper limits at the 95% confidence level on their branching fractions ranging between 1. 8× 10− 10 and 2. 6× 10− 9 are set.

Low exposure long-baseline neutrino oscillation sensitivity of the DUNE experiment

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,D Adams,M Adinolfi,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Aimard,B Ali-Mohammadzadeh,T Alion,K Allison,S Alonso Monsalve,M AlRashed,C Alt,A Alton,P Amedo,J Anderson,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,GJ Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,E Belchior,JBR Battat,F Battisti,F Bay,JL Bazo Alba,JF Beacom,E Bechetoille,B Behera,L Bellantoni,G Bellettini,V Bellini,O Beltramello,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,Y Bezawada,TJC Bezerra,A Bhardwaj,V Bhatnagar,M Bhattacharjee,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FDM Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,M Bongrand,C Bonilla-Diaz,F Bonini,A Booth,F Boran,S Bordoni,A Borkum,N Bostan,P Bour,C Bourgeois,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,C Brew,SJ Brice,C Brizzolari,C Bromberg,J Brooke,A Bross,G Brunetti,M Brunetti,N Buchanan,H Budd,I Butorov,I Cagnoli,D Caiulo,R Calabrese,P Calafiura,J Calcutt,M Calin,S Calvez,E Calvo,A Caminata

Journal

Physical Review D

Published Date

2022/4/25

The Deep Underground Neutrino Experiment (DUNE) will produce world-leading neutrino oscillation measurements over the lifetime of the experiment. In this work, we explore DUNE’s sensitivity to observe charge-parity violation (CPV) in the neutrino sector, and to resolve the mass ordering, for exposures of up to 100 kiloton-megawatt-calendar years (kt-MW-CY), where calendar years include an assumption of 57% accelerator uptime based on past accelerator performance at Fermilab. The analysis includes detailed uncertainties on the flux prediction, the neutrino interaction model, and detector effects. We demonstrate that DUNE will be able to unambiguously resolve the neutrino mass ordering at a 4 σ (5 σ) level with a 66 (100) kt-MW-CY far detector exposure, and has the ability to make strong statements at significantly shorter exposures depending on the true value of other oscillation parameters, with a …

arXiv: Identification and reconstruction of low-energy electrons in the ProtoDUNE-SP detector

Authors

A Abed Abud,A Friedland,M Smy,P Hamacher-Baumann,Z Djurcic,E Goudzovski,D Totani,I Katsioulas,C Densham,B Russell,E Calvo,P Green,A Penzo,D Shooltz,D Blend,L Singh,J Crnkovic,P Vahle,CS Mishra,MA Acero,H Meyer,DH Koh,D Moretti,G Cerati,M Adamowski,J Zennamo,AS Dyshkant,R Gran,J Stewart,D Marfatia,J Tamara,T Patzak,C Pernas,A Thompson,K Yonehara,JBR Battat,D Kwak,P Dunne,C Brizzolari,K Cho,R Rivera,G Lehmann Miotto,H Newton,C Mariani,S Vallecorsa,S Prakash,IK Furic,A Gabrielli,A Ankowski,PC De Holanda,A Barros,C Benitez Montiel,S Sacerdoti,E Smith,P Keener,X Wang,V Pec,O Palamara,JC Carceller,J Brooke,P Lasorak,CA Moura,A De la Torre,MA Delgado,E Guerard,W Ketchum,C Petta,G Miller,Z Hulcher,DA Dwyer,LW Koerner,J Maalmi,B Szczerbinska,V Tishchenko,A Thea,JRT de Mello Neto,T Gamble,J Matthews,K Moffat,F Muheim,M Chen,L Di Giulio,I Kotler,K Dugas,R Cross,T Cai,GC Blazey,P Novella,B Howard,L Jiang,N Talukdar,A Laundrie,L Suter,MHLS Wang,A Robert,J Soto-Oton,J Kvasnicka,X Ji,Y Onel,N Carrara,H Duyang,A De Roeck,J Franc,A Gago,D Last,J Bhambure,JWF Valle,P De Almeida,V Papadimitriou,Y Suvorov,C Thorn,S Uzunyan,S Manly,F Matichard,D Carber,L Paulucci,T Junk,S Copello,F Di Capua,R Mohanta,G Barr,P Gauzzi,JLL Bazo Alba,S Dolan,SD Reitzner,LS Fajardo,F Psihas,J Heise,S Antusch,K Duffy,S Miryala,D Whittington,L Rochester,C Mossey,L Kolupaeva,N Samios,N Gallice,E Pennacchio,X Qian,E Parozzi,D Torbunov,S Rosauro-Alcaraz,C Wret,O Goodwin,M Worcester,N McConkey,S Gent,A Gallego-Ros,P Laycock,MP Decowski

Published Date

2022/11/2

Measurements of electrons from νe interactions are crucial for the Deep Underground Neutrino Experiment (DUNE) neutrino oscillation program, as well as searches for physics beyond the standard model, supernova neutrino detection, and solar neutrino measurements. This article describes the selection and reconstruction of low-energy (Michel) electrons in the ProtoDUNE-SP detector. ProtoDUNE-SP is one of the prototypes for the DUNE far detector, built and operated at CERN as a charged particle test beam experiment. A sample of lowenergy electrons produced by the decay of cosmic muons is selected with a purity of 95%. This sample is used to calibrate the low-energy electron energy scale with two techniques. An electron energy calibration based on a cosmic ray muon sample uses calibration constants derived from measured and simulated cosmic ray muon events. Another calibration technique makes use of the theoretically well-understood Michel electron energy spectrum to convert reconstructed charge to electron energy. In addition, the effects of detector response to lowenergy electron energy scale and its resolution including readout electronics threshold effects are quantified. Finally, the relation between the theoretical and reconstructed low-energy electron energy spectrum is derived and the energy resolution is characterized. The low-energy electron selection presented here accounts for about 75% of the total electron deposited energy. After the addition of missing energy using a Monte Carlo simulation, the energy resolution improves from about 40% to 25% at 50 MeV. These results are used to validate the expected …

Constraints on the CKM angle γ from B±→ Dh±decays using D→ h±h′∓ π0 final states

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,FJ Abudinen Gallego,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,N Andersson,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,S Bashir,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero,S Celani

Journal

Journal of High Energy Physics

Published Date

2022/7

A data sample collected with the LHCb detector corresponding to an integrated luminosity of 9 fb− 1 is used to measure eleven CP violation observables in B±→ Dh±decays, where h is either a kaon or a pion. The neutral D meson decay is reconstructed in the three-body final states: K±π∓ π 0; π+ π− π 0; K+ K− π 0 and the suppressed π±K∓ π 0 combination. The mode where a large CP asymmetry is expected, B±→[π±K∓ π 0] D K±, is observed with a significance greater than seven standard deviations. The ratio of the partial width of this mode relative to that of the favoured mode, B±→[K±π∓ π 0] D K±, is R ADS (K)=(1. 27±0. 16±0. 02)× 10− 2. Evidence for a large CP asymmetry is also seen: A ADS (K)=− 0. 38±0. 12±0. 02. Constraints on the CKM angle γ are calculated from the eleven reported observables.

Response of a CMS HGCAL silicon-pad electromagnetic calorimeter prototype to 20–300 GeV positrons

Authors

B Acar,G Adamov,C Adloff,S Afanasiev,N Akchurin,B Akgün,F Alam Khan,M Alhusseini,J Alison,A Alpana,G Altopp,M Alyari,S An,S Anagul,I Andreev,P Aspell,IO Atakisi,O Bach,A Baden,G Bakas,A Bakshi,S Bannerjee,P Bargassa,D Barney,F Beaudette,F Beaujean,E Becheva,A Becker,P Behera,A Belloni,T Bergauer,M Besancon,S Bhattacharya,D Bhowmik,B Bilki,P Bloch,A Bodek,M Bonanomi,A Bonnemaison,S Bonomally,J Borg,F Bouyjou,N Bower,D Braga,J Brashear,E Brondolin,P Bryant,A Buchot Perraguin,J Bueghly,B Burkle,A Butler-Nalin,O Bychkova,S Callier,D Calvet,X Cao,A Cappati,B Caraway,S Caregari,A Cauchois,L Ceard,YC Cekmecelioglu,S Cerci,G Cerminara,M Chadeeva,N Charitonidis,R Chatterjee,YM Chen,Z Chen,HJ Cheng,KY Cheng,S Chernichenko,H Cheung,CH Chien,S Choudhury,D Čoko,G Collura,F Couderc,M Danilov,D Dannheim,W Daoud,P Dauncey,A David,G Davies,O Davignon,E Day,P Debarbaro,F De Guio,C de La Taille,M De Silva,P Debbins,MM Defranchis,E Delagnes,JM Deltoro Berrio,G Derylo,PG Dias De Almeida,D Diaz,P Dinaucourt,J Dittmann,M Dragicevic,S Dugad,F Dulucq,I Dumanoglu,V Dutta,S Dutta,M Dünser,J Eckdahl,TK Edberg,M El Berni,F Elias,SC Eno,Yu Ershov,P Everaerts,S Extier,F Fahim,C Fallon,G Fedi,BA Fontana Santos Alves,E Frahm,G Franzoni,J Freeman,T French,P Gandhi,S Ganjour,X Gao,A Garcia-Bellido,F Gastaldi,Z Gecse,Y Geerebaert,H Gerwig,O Gevin,S Ghosh,A Gilbert,W Gilbert,K Gill,C Gingu,S Gninenko,A Golunov,I Golutvin,T Gonzalez,N Gorbounov,L Gouskos,AB Gray,Y Gu,F Guilloux,Y Guler,E Gülmez,J Guo,E Gurpinar Guler,M Hammer,HM Hassanshahi

Journal

Journal of instrumentation

Published Date

2022/5/12

The Compact Muon Solenoid (CMS) collaboration will replace the existing calorimeters in the endcaps with a new high-granularity calorimeter (HGCAL)[1] for the High Luminosity-LHC (HLLHC). It will be a sampling calorimeter with hexagonal multipad large-area silicon sensors and plastic scintillator tiles as the active media. The calorimeter endcaps (CE) have both electromagnetic (CE-E) and hadronic (CE-H) sections. The absorber layers of the CE-E section are alternating plates of either lead cladded with stainless steel or copper and copper-tungsten plates; the active layers are all segmented silicon (Si) sensors. The CE-H section uses stainless steel as the absorber and a combination of scintillator and silicon is used as the active material, with Si in the regions of highest radiation. The choice of this particular design was made to cope with the significantly higher radiation levels and the contribution of …

Snowmass Neutrino Frontier: DUNE Physics Summary

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,M Adamowski,D Adams,M Adinolfi,C Adriano,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Aimard,F Akbar,B Ali-Mohammadzadeh,T Alion,K Allison,S Alonso Monsalve,M AlRashed,C Alt,A Alton,R Alvarez,P Amedo,J Anderson,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,L Arellano,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,V Ayala Lara,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,GJ Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,C Batchelor,E Belchior,JBR Battat,F Battisti,F Bay,MCQ Bazetto,JL Alba,JF Beacom,E Bechetoille,B Behera,C Beigbeder,L Bellantoni,G Bellettini,V Bellini,O Beltramello,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,A Bersani,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,Y Bezawada,AT Bezerra,TJC Bezerra,A Bhardwaj,V Bhatnagar,M Bhattacharjee,D Bhattarai,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FDM Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,M Bongrand,C Bonilla-Diaz,F Bonini,A Booth,F Boran,S Bordoni,A Borkum,N Bostan,P Bour,C Bourgeois,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,D Breton,C Brew,SJ Brice,C Brizzolari,C Bromberg,J Brooke,A Bross,G Brunetti

Journal

arXiv preprint arXiv:2203.06100

Published Date

2022/3/11

The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino oscillation experiment with a primary physics goal of observing neutrino and antineutrino oscillation patterns to precisely measure the parameters governing long-baseline neutrino oscillation in a single experiment, and to test the three-flavor paradigm. DUNE's design has been developed by a large, international collaboration of scientists and engineers to have unique capability to measure neutrino oscillation as a function of energy in a broadband beam, to resolve degeneracy among oscillation parameters, and to control systematic uncertainty using the exquisite imaging capability of massive LArTPC far detector modules and an argon-based near detector. DUNE's neutrino oscillation measurements will unambiguously resolve the neutrino mass ordering and provide the sensitivity to discover CP violation in neutrinos for a wide range of possible values of . DUNE is also uniquely sensitive to electron neutrinos from a galactic supernova burst, and to a broad range of physics beyond the Standard Model (BSM), including nucleon decays. DUNE is anticipated to begin collecting physics data with Phase I, an initial experiment configuration consisting of two far detector modules and a minimal suite of near detector components, with a 1.2 MW proton beam. To realize its extensive, world-leading physics potential requires the full scope of DUNE be completed in Phase II. The three Phase II upgrades are all necessary to achieve DUNE's physics goals: (1) addition of far detector modules three and four for a total FD fiducial mass of at least 40 kt, (2 …

Precise determination of the – oscillation frequency

Journal

Nature Physics

Published Date

2022/1

Mesons comprising a beauty quark and strange quark can oscillate between particle () and antiparticle () flavour eigenstates, with a frequency given by the mass difference between heavy and light mass eigenstates, Δms. Here we present a measurement of Δms using π+ decays produced in proton–proton collisions collected with the LHCb detector at the Large Hadron Collider. The oscillation frequency is found to be Δms = 17.7683 ± 0.0051 ± 0.0032 ps−1, where the first uncertainty is statistical and the second is systematic. This measurement improves on the current Δms precision by a factor of two. We combine this result with previous LHCb measurements to determine Δms = 17.7656 ± 0.0057 ps−1, which is the legacy measurement of the original LHCb detector.

Measurement of the photon polarization in decays

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,F Abudinen,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,D Cervenkov,AJ Chadwick

Journal

Physical Review D

Published Date

2022/3/23

The photon polarization in b→ s γ transitions is measured for the first time in radiative b-baryon decays exploiting the unique spin structure of Λ b 0→ Λ γ decays. A data sample corresponding to an integrated luminosity of 6 fb− 1 collected by the LHCb experiment in p p collisions at a center-of-mass energy of 13 TeV is used. The photon polarization is measured to be α γ= 0.8 2− 0.26− 0.13+ 0.17+ 0.04, where the first uncertainty is statistical and the second systematic. This result is in agreement with the Standard Model prediction and previous measurements in b-meson decays. Charge-parity breaking effects are studied for the first time in this observable and found to be consistent with C P symmetry.

Test of lepton universality in beauty-quark decays

Journal

Nature Physics

Published Date

2022/3

The standard model of particle physics currently provides our best description of fundamental particles and their interactions. The theory predicts that the different charged leptons, the electron, muon and tau, have identical electroweak interaction strengths. Previous measurements have shown that a wide range of particle decays are consistent with this principle of lepton universality. This article presents evidence for the breaking of lepton universality in beauty-quark decays, with a significance of 3.1 standard deviations, based on proton–proton collision data collected with the LHCb detector at CERN’s Large Hadron Collider. The measurements are of processes in which a beauty meson transforms into a strange meson with the emission of either an electron and a positron, or a muon and an antimuon. If confirmed by future measurements, this violation of lepton universality would imply physics beyond the standard …

Measurement of the decay properties and search for the and decays

Authors

Roel Aaij,C Abellan Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Alessandro Camboni,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Abbie Jane Chadwick,Matthew George Chapman,Matthew Charles,Ph Charpentier,Georgios Chatzikonstantinidis,CA Chavez Barajas,Maximilien Chefdeville,Chen Chen,Shanzhen Chen

Journal

Physical Review D

Published Date

2022/1/25

An improved measurement of the decay B s 0→ μ+ μ− and searches for the decays B 0→ μ+ μ− and B s 0→ μ+ μ− γ are performed at the LHCb experiment using data collected in proton-proton collisions at s= 7, 8 and 13 TeV, corresponding to integrated luminosities of 1, 2 and 6 fb− 1, respectively. The B s 0→ μ+ μ− branching fraction and effective lifetime are measured to be B (B s 0→ μ+ μ−)=(3.0 9− 0.43− 0.11+ 0.46+ 0.15)× 10− 9 and τ (B s 0→ μ+ μ−)=(2.07±0.29±0.03) ps, respectively, where the uncertainties include both statistical and systematic contributions. No significant signal for B 0→ μ+ μ− and B s 0→ μ+ μ− γ decays is found and the upper limits B (B 0→ μ+ μ−)< 2.6× 10− 10 and B (B s 0→ μ+ μ− γ)< 2.0× 10− 9 at 95% confidence level are determined, where the latter is limited to the range m μ μ> 4.9 GeV/c 2. Additionally, the ratio between the B 0→ μ+ μ− and B s 0→ μ+ μ− branching fractions is …

Observation of Two New Excited States Decaying to

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,M Brodski,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,D Cervenkov,AJ Chadwick

Journal

Physical Review Letters

Published Date

2022/4/21

Two narrow resonant states are observed in the Λ b 0 K− π+ mass spectrum using a data sample of proton-proton collisions at a center-of-mass energy of 13 TeV, collected by the LHCb experiment and corresponding to an integrated luminosity of 6 fb− 1. The minimal quark content of the Λ b 0 K− π+ system indicates that these are excited Ξ b 0 baryons. The masses of the Ξ b (6327) 0 and Ξ b (6333) 0 states are m [Ξ b (6327) 0]= 6327.2 8− 0.21+ 0.23±0.12±0.24 and m [Ξ b (6333) 0]= 6332.6 9− 0.18+ 0.17±0.03±0.22 MeV, respectively, with a mass splitting of Δ m= 5.4 1− 0.27+ 0.26±0.12 MeV, where the uncertainties are statistical, systematic, and due to the Λ b 0 mass measurement. The measured natural widths of these states are consistent with zero, with upper limits of Γ [Ξ b (6327) 0]< 2.20 (2.56) and Γ [Ξ b (6333) 0]< 1.60 (1.92) MeV at a 90%(95%) credibility level. The significance of the two-peak hypothesis …

Measurement of the ratio of branching fractions

Authors

A Abulencia,J Adelman,T Affolder,T Akimoto,MG Albrow,D Ambrose,S Amerio,D Amidei,A Anastassov,K Anikeev,A Annovi,J Antos,M Aoki,G Apollinari,J-F Arguin,Tetsuo Arisawa,A Artikov,W Ashmanskas,A Attal,F Azfar,P Azzi-Bacchetta,P Azzurri,N Bacchetta,W Badgett,A Barbaro-Galtieri,VE Barnes,BA Barnett,S Baroiant,V Bartsch,G Bauer,F Bedeschi,S Behari,S Belforte,G Bellettini,J Bellinger,A Belloni,D Benjamin,Andrew Beretvas,J Beringer,T Berry,A Bhatti,M Binkley,Dario Bisello,RE Blair,C Blocker,B Blumenfeld,A Bocci,A Bodek,V Boisvert,G Bolla,A Bolshov,D Bortoletto,J Boudreau,A Boveia,B Brau,L Brigliadori,C Bromberg,E Brubaker,J Budagov,HS Budd,S Budd,S Budroni,K Burkett,Giovanni Busetto,P Bussey,KL Byrum,S Cabrera,M Campanelli,M Campbell,F Canelli,A Canepa,S Carillo,D Carlsmith,R Carosi,S Carron,M Casarsa,A Castro,P Catastini,Diego Cauz,M Cavalli-Sforza,A Cerri,L Cerrito,SH Chang,YC Chen,M Chertok,G Chiarelli,G Chlachidze,F Chlebana,I Cho,K Cho,D Chokheli,JP Chou,G Choudalakis,SH Chuang,K Chung,WH Chung,YS Chung,M Ciljak,CI Ciobanu,MARIA AGNESE Ciocci,A Clark,D Clark,M Coca,Gabriele Compostella,ME Convery,J Conway,B Cooper,K Copic,M Cordelli,G Cortiana,F Crescioli,C Cuenca Almenar,J Cuevas,R Culbertson,JC Cully,D Cyr,S Daronco,M Datta,S D’Auria,T Davies,M D’Onofrio,D Dagenhart,P De Barbaro,Sandro De Cecco,A Deisher,Gilles De Lentdecker,Mauro Dell’Orso,F Delli Paoli,L Demortier,J Deng,M Deninno,D De Pedis,PF Derwent,GP Di Giovanni,Carlo Dionisi,B Di Ruzza,JR Dittmann,P Dituro,C Dörr,Simone Donati,Mauro Donegà,P Dong,J Donini,T Dorigo,S Dube,J Efron,R Erbacher,D Errede,S Errede,R Eusebi

Journal

Physical Review D

Published Date

2009/6/10

We report a measurement of the ratio of branching fractions of the decays B±→ J/ψ π±and B±→ J/ψ K±using the CDF II detector at the Fermilab Tevatron Collider. The signal from the Cabbibo-suppressed B±→ J/ψ π±decay is separated from B±→ J/ψ K±using the B±→ J/ψ K±invariant mass distribution and the kinematical differences of the hadron track in the two decay modes. From a sample of 220 pb− 1 of p p collisions at s= 1.96 TeV, we observe 91±15 B±→ J/ψ π±events together with 1883±34 B±→ J/ψ K±events. The ratio of branching fractions is found to be B (B±→ J/ψ π±)/B (B±→ J/ψ K±)=(4.86±0.82 (stat)±0.15 (syst))%.

Study of coherent J/ψ production in lead-lead collisions at = 5 TeV

Authors

Roel Aaij,Carlos Abellán Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Alessandro Camboni,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Abbie Jane Chadwick,Matthew George Chapman,Matthew Charles,Ph Charpentier,Georgios Chatzikonstantinidis,CA Chavez Barajas,Maximilien Chefdeville,Chen Chen,Shanzhen Chen

Journal

Journal of High Energy Physics

Published Date

2022/7

Coherent production of J/ψ mesons is studied in ultraperipheral lead-lead collisions at a nucleon-nucleon centre-of-mass energy of 5 TeV, using a data sample collected by the LHCb experiment corresponding to an integrated luminosity of about 10 μb− 1. The J/ψ mesons are reconstructed in the dimuon final state and are required to have transverse momentum below 1 GeV. The cross-section within the rapidity range of 2. 0< y< 4. 5 is measured to be 4. 45±0. 24±0. 18±0. 58 mb, where the first uncertainty is statistical, the second systematic and the third originates from the luminosity determination. The cross-section is also measured in J/ψ rapidity intervals. The results are compared to predictions from phenomenological models.

Tests of Lepton Universality Using and Decays

Authors

Roel Aaij,ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,G Alkhazov,P Alvarez Cartelle,S Amato,JL Amey,Y Amhis,L An,L Anderlini,N Andersson,A Andreianov,M Andreotti,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,S Bashir,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero,S Celani

Journal

Physical review letters

Published Date

2022/5/11

Tests of lepton universality in B 0→ K S 0 ℓ+ ℓ− and B+→ K*+ ℓ+ ℓ− decays where ℓ is either an electron or a muon are presented. The differential branching fractions of B 0→ K S 0 e+ e− and B+→ K*+ e+ e− decays are measured in intervals of the dilepton invariant mass squared. The measurements are performed using proton-proton collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 9 fb− 1. The results are consistent with the standard model and previous tests of lepton universality in related decay modes. The first observation of B 0→ K S 0 e+ e− and B+→ K*+ e+ e− decays is reported.

Measurement of the lifetimes of promptly produced Ωc0 and Ξc0 baryons

Authors

LHCb Collaboration

Journal

Science Bulletin

Published Date

2022/3/15

A measurement of the lifetimes of the Ω c 0 and Ξ c 0 baryons is reported using proton–proton collision data at a centre-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5. 4 fb-1 collected by the LHCb experiment. The Ω c 0 and Ξ c 0 baryons are produced directly from proton interactions and reconstructed in the pK-K-π+ final state. The Ω c 0 lifetime is measured to be 276.5±13.4±4.4±0.7 fs, and the Ξ c 0 lifetime is measured to be 148. 0±2. 3±2. 2±0. 2 fs, where the first uncertainty is statistical, the second systematic, and the third due to the uncertainty on the D 0 lifetime. These results confirm previous LHCb measurements based on semileptonic beauty-hadron decays, which disagree with earlier results of a four times shorter Ω c 0 lifetime, and provide the single most precise measurement of the Ω c 0 lifetime.

photoproduction in Pb-Pb peripheral collisions at TeV

Authors

Roel Aaij,C Abellan Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Alessandro Camboni,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Abbie Jane Chadwick,Matthew George Chapman,Matthew Charles,Ph Charpentier,Georgios Chatzikonstantinidis,CA Chavez Barajas,Maximilien Chefdeville,Chen Chen,Shanzhen Chen

Journal

Physical Review C

Published Date

2022/3/3

The photoproduction of J/ψ mesons at low transverse momentum is studied in peripheral lead-lead collisions collected by the LHCb Collaboration at a center-of-mass energy per nucleon pair of 5 TeV, corresponding to an integrated luminosity of 210 μ b− 1. The J/ψ candidates are reconstructed through the prompt decay into two muons of opposite charge in the rapidity region of 2.0< y< 4.5. The results significantly improve previous measurements and are compared to the latest theoretical prediction.

Study of Bosons Produced in Association with Charm in the Forward Region

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,FJ Abudinen Gallego,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,D Cervenkov,AJ Chadwick

Journal

Physical Review Letters

Published Date

2022/2/24

Events containing a Z boson and a charm jet are studied for the first time in the forward region of proton-proton collisions. The data sample used corresponds to an integrated luminosity of 6 fb− 1 collected at a center-of-mass energy of 13 TeV with the LHCb detector. In events with a Z boson and a jet, the fraction of charm jets is determined in intervals of Z-boson rapidity in the range 2.0< y (Z)< 4.5. A sizable enhancement is observed in the forwardmost y (Z) interval, which could be indicative of a valencelike intrinsic-charm component in the proton wave function.

Design, construction and operation of the ProtoDUNE-SP Liquid Argon TPC

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,D Adams,M Adinolfi,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Ali-Mohammadzadeh,T Alion,K Allison,S Alonso Monsalve,M Alrashed,C Alt,A Alton,P Amedo,J Anderson,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,A Ariga,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,P Baesso,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,GJ Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,E Belchior,JBR Battat,F Battisti,F Bay,JL Bazo Alba,JF Beacom,E Bechetoille,B Behera,L Bellantoni,G Bellettini,V Bellini,O Beltramello,D Belver,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,H Berns,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,TJC Bezerra,M Bhattacharjee,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FDM Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,M Bongrand,F Bonini,A Booth,C Booth,F Boran,S Bordoni,A Borkum,T Boschi,N Bostan,P Bour,C Bourgeois,SB Boyd,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,C Brew,E Brianne,SJ Brice,C Brizzolari,C Bromberg,G Brooijmans,J Brooke,A Bross,G Brunetti,M Brunetti,N Buchanan,H Budd,I Butorov,I Cagnoli,D Caiulo,R Calabrese,P Calafiura,J Calcutt

Journal

Journal of instrumentation

Published Date

2022/1/4

The ProtoDUNE-SP detector is a single-phase liquid argon time projection chamber (LArTPC) that was constructed and operated in the CERN North Area at the end of the H4 beamline. This detector is a prototype for the first far detector module of the Deep Underground Neutrino Experiment (DUNE), which will be constructed at the Sandford Underground Research Facility (SURF) in Lead, South Dakota, USA The ProtoDUNE-SP detector incorporates full-size components as designed for DUNE and has an active volume of 7× 6× 7.2 m^{3}. The H4 beam delivers incident particles with well-measured momenta and high-purity particle identification. ProtoDUNE-SP's successful operation between 2018 and 2020 demonstrates the effectiveness of the single-phase far detector design. This paper describes the design, construction, assembly and operation of the detector components.

Observation of the and decays

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellán Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista de Souza Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Nicolo Vladi Biesuz,Simone Bifani,Pierre Billoir,Alice Biolchini,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Rowina Caspary,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli

Journal

Physical Review D

Published Date

2022/4/20

The first observations of B 0→ D*(2007) 0 K+ π− and B s 0→ D*(2007) 0 K− π+ decays are presented, and their branching fractions relative to that of the B 0→ D*(2007) 0 π+ π− decay are reported. These modes can potentially be used to investigate the spectroscopy of charm and charm-strange resonances and to determine the angle γ of the Cabibbo-Kobayashi-Maskawa unitarity triangle. It is also important to understand them as a source of potential background in determinations of γ from B+→ D K+ and B 0→ D K+ π− decays. The analysis is based on a sample corresponding to an integrated luminosity of 5.4 fb− 1 of proton-proton collision data at 13 TeV center-of-mass energy recorded with the LHCb detector. The D*(2007) 0 mesons are fully reconstructed in the D 0 π 0 and D 0 γ channels with the D 0→ K+ π− decay. A novel weighting method is used to subtract background while simultaneously applying an …

Separation of track-and shower-like energy deposits in ProtoDUNE-SP using a convolutional neural network

Authors

Adam Abed Abud,Babak Abi,Roberto Acciarri,MA Acero,Márcio Rostirolla Adames,George Adamov,Mark Adamowski,David Adams,Marco Adinolfi,Antoni Aduszkiewicz,Jessica Aguilar,Zubayer Ahmad,Jhanzeb Ahmed,Benjamin Aimard,Behnam Ali-Mohammadzadeh,Tyler Alion,Kyle Allison,Saul Alonso Monsalve,Munera Alrashed,Christoph Alt,Andrew Alton,Rodrigo Alvarez,Pablo Amedo,John Anderson,Costas Andreopoulos,Mirco Andreotti,M Andrews,Fenompanirina Andrianala,Sofia Andringa,Nikolay Anfimov,Artur Ankowski,Marcelo Antoniassi,Maria Antonova,Alexander Antoshkin,Stefan Antusch,Alfredo Aranda-Fernandez,Luciano Arellano,LO Arnold,MA Arroyave,Jonathan Asaadi,Lily Asquith,Adam Aurisano,Vladimir Aushev,Dario Autiero,V Ayala Lara,M Ayala-Torres,Farrukh Azfar,Marta Babicz,Ashley Back,Henning Back,JJ Back,Chris Backhouse,Iuri Bagaturia,Linda Bagby,Nikita Balashov,Supraja Balasubramanian,Pierre Baldi,Bruce Baller,Bindu Bambah,Fernando Barao,Gabriela Barenboim,G Barker,Wayne Barkhouse,Christopher Barnes,Giles Barr,J Barranco Monarca,Adilson Barros,Nuno Barros,JL Barrow,Anastasia Basharina-Freshville,Amit Bashyal,Vincent Basque,Charlie Batchelor,E Batista das Chagas,James Battat,Federico Battisti,Fatih Bay,MCQ Bazetto,J Bazo Alba,JF Beacom,Edouard Bechetoille,Biswaranjan Behera,Christophe Beigbeder,Leo Bellantoni,Giorgio Bellettini,Vincenzo Bellini,Olga Beltramello,Nektarios Benekos,C Benitez Montiel,F Bento Neves,Joshua Berger,Sophie Berkman,Paolo Bernardini,RM Berner,Andrea Bersani,Sergio Bertolucci,Minerba Betancourt,A Betancur Rodríguez,Adrian Bevan,Yashwanth Bezawada,TS Bezerra,Akhil Bhardwaj,Vipin Bhatnagar,Maharnab Bhattacharjee,Devesh Bhattarai,Shyam Bhuller,Bipul Bhuyan,Simone Biagi,Jianming Bian,Matteo Biassoni,Kurt Biery,Burak Bilki,Mary Bishai,Alexander Bitadze,Andrew Blake,F Blaszczyk,G Blazey,Edward Blucher,Jan Boissevain,Sara Bolognesi,Timothy Bolton,Luca Bomben,Maurizio Bonesini,Mathieu Bongrand,Cesar Bonilla-Diaz,Filiberto Bonini,Alexander Booth,Fatma Boran,Stefania Bordoni,Aran Borkum,Nilay Bostan,Petr Bour,Christian Bourgeois,Daniel Boyden,Juraj Bracinik,Davide Braga,Dominic Brailsford,Antonio Branca,Andrew Brandt,Johan Bremer,Dominique Breton,Christopher Brew,SJ Brice,Claudia Brizzolari,Carl Bromberg,Jim Brooke,Alan Bross,Giulia Brunetti,Maria Brunetti,Norman Buchanan

Journal

The European Physical Journal C

Published Date

2022/10/12

Liquid argon time projection chamber detector technology provides high spatial and calorimetric resolutions on the charged particles traversing liquid argon. As a result, the technology has been used in a number of recent neutrino experiments, and is the technology of choice for the Deep Underground Neutrino Experiment (DUNE). In order to perform high precision measurements of neutrinos in the detector, final state particles need to be effectively identified, and their energy accurately reconstructed. This article proposes an algorithm based on a convolutional neural network to perform the classification of energy deposits and reconstructed particles as track-like or arising from electromagnetic cascades. Results from testing the algorithm on experimental data from ProtoDUNE-SP, a prototype of the DUNE far detector, are presented. The network identifies track- and shower-like particles, as well as Michel electrons …

Study of the doubly charmed tetraquark

Authors

R Aaij,AS Abdelmotteleb,C Abellán Beteta,FJ Gallego,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,G Alkhazov,P Alvarez Cartelle,S Amato,JL Amey,Y Amhis,L An,L Anderlini,A Andreianov,M Andreotti,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,S Bashir,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FC Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJ Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,D Cervenkov,AJ Chadwick

Journal

Nature Communications

Published Date

2022/12

Quantum chromodynamics, the theory of the strong force, describes interactions of coloured quarks and gluons and the formation of hadronic matter. Conventional hadronic matter consists of baryons and mesons made of three quarks and quark-antiquark pairs, respectively. Particles with an alternative quark content are known as exotic states. Here a study is reported of an exotic narrow state in the D 0 D 0 π + mass spectrum just below the D *+ D 0 mass threshold produced in proton-proton collisions collected with the LHCb detector at the Large Hadron Collider. The state is consistent with the ground isoscalar T c c + tetraquark with a quark content of c c u ¯ d ¯ and spin-parity quantum numbers J P  = 1 + . Study of the DD mass spectra disfavours interpretation of the resonance as the isovector state. The decay structure via intermediate off-shell D *+ mesons is consistent with the observed D 0 π + mass distribution. To analyse the mass of the resonance and its coupling to the D * D system, a dedicated model is developed under the assumption of an isoscalar axial-vector T c c + state decaying to the D * D channel. Using this model, resonance parameters including the pole position, scattering length, effective range and compositeness are determined to reveal important information about the nature of the T c c + state. In addition, an unexpected dependence of the production rate on track multiplicity is observed.

Angular Analysis of D⁰→ π⁺ π⁻ μ⁺ μ⁻ and D⁰→ K⁺ K⁻ μ⁺ μ⁻ Decays and Search for CP Violation [Angular Analysis of D0-> x plus x-mu plus mu-and D0-> K plus K-mu plus mu-Decays …

Authors

Roel Aaij,ASW Abdelmotteleb,C Abellán Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,G Alkhazov,P Alvarez Cartelle,AA Alves,S Amato,JL Amey,Y Amhis,L An,L Anderlini,N Andersson,A Andreianov,M Andreotti,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,S Bashir,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,I Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,NV Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero

Journal

PHYSICAL REVIEW LETTERS

Published Date

2022/6/3

The first full angular analysis and an updated measurement of the decay-rate CP asymmetry of the D0→ π+ π− µ+ µ− and D0→ K+K− µ+ µ− decays are reported. The analysis uses proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV. The dataset corresponds to an integrated luminosity of 9 fb− 1. The full set of CP-averaged angular observables and their CP asymmetries are measured as a function of the dimuon invariant mass. The results are consistent with expectations from the standard model and with CP symmetry.

Branching Fraction Measurements of the Rare and Decays

Authors

Roel Aaij,C Abellan Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Abbie Jane Chadwick,Matthew George Chapman,Matthew Charles,Ph Charpentier,Georgios Chatzikonstantinidis,CA Chavez Barajas,Maximilien Chefdeville,Chen Chen,Shanzhen Chen,Aleksei Chernov

Journal

Physical review letters

Published Date

2021/10/5

The branching fraction of the rare B s 0→ ϕ μ+ μ− decay is measured using data collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 6 fb− 1, respectively. The branching fraction is reported in intervals of q 2, the square of the dimuon invariant mass. In the q 2 region between 1.1 and 6.0 GeV 2/c 4, the measurement is found to lie 3.6 standard deviations below a standard model prediction based on a combination of light cone sum rule and lattice QCD calculations. In addition, the first observation of the rare B s 0→ f 2′(1525) μ+ μ− decay is reported with a statistical significance of 9 standard deviations and its branching fraction is determined.

Durability assessment of concretes reinforced with steel and synthetic fibers in Colombia

Authors

J Carrillo,N Guerrero,O Arroyo,A Rodríguez

Journal

Journal of Physics: Conference Series

Published Date

2021/11/1

In recent years, the use of steel fibers has increased in Colombia, optimizing structure designs, quality specifications and mechanical behavior. However, the concrete durability and resistance to aggressive environments such as sulfates and chlorides are not commonly evaluated. This paper includes results of durability analysis for 21 MPa compressive strength concretes reinforces with steel and synthetic fibers. Performance parameters measured during tests include sulfate resistance, chlorides penetration, and carbonation according to technical standards. The Variables of experimental program were fiber type and fiber dosage. Dosages for synthetic fibers were 1.5 kg/m 3, 3.0 kg/m 3 and 5.0 kg/m 3, and for steel fibers were 5.0 kg/m 3, 9.0 kg/m 3 and 18 kg/m 3. Results of the study were used to propose recommendations for reducing concrete deterioration when exposed to these aggressive environments and …

Simultaneous determination of CKM angle γ and charm mixing parameters

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,F Abudinén,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Daniel Cervenkov,Abbie Jane Chadwick

Journal

Journal of High Energy Physics

Published Date

2021/12

A combination of measurements sensitive to the CP violation angle γ of the Cabibbo-Kobayashi-Maskawa unitarity triangle and to the charm mixing parameters that describe oscillations between D 0 and 0 mesons is performed. Results from the charm and beauty sectors, based on data collected with the LHCb detector at CERN’s Large Hadron Collider, are combined for the first time. This method provides an improvement on the precision of the charm mixing parameter y by a factor of two with respect to the current world average. The charm mixing parameters are determined to be and y=. The angle γ is found to be γ= and is the most precise determination from a single experiment.

Measurement of J/ψ production cross-sections in pp collisions at = 5 TeV

Authors

R Aaij,ASW Abdelmotteleb,C Abellán Beteta,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,G Alkhazov,P Alvarez Cartelle,S Amato,JL Amey,Y Amhis,L An,L Anderlini,A Andreianov,M Andreotti,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,S Bashir,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bitadze,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,M Brodski,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,P Campana,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,D Cervenkov,AJ Chadwick

Journal

Journal of High Energy Physics

Published Date

2021/11

The production cross-sections of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of= 5 TeV are measured using a data sample corresponding to an integrated luminosity of 9. 13±0. 18 pb− 1, collected by the LHCb experiment. The cross-sections are measured differentially as a function of transverse momentum, p T, and rapidity, y, and separately for J/ψ mesons produced promptly and from beauty hadron decays (nonprompt). With the assumption of unpolarised J/ψ mesons, the production cross-sections integrated over the kinematic range 0< p T< 20 GeV/c and 2. 0< y< 4. 5 are

Search for the doubly charmed baryon in the final state

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Daniel Cervenkov,Abbie Jane Chadwick

Journal

Journal of High Energy Physics

Published Date

2021/12

A search for the doubly charmed baryon is performed in the invariant-mass spectrum, where the baryon is reconstructed in the pK− π+ final state. The study uses proton-proton collision data collected with the LHCb detector at a centre-of-mass energy of 13 TeV, corresponding to a total integrated luminosity of 5.4 fb− 1. No significant signal is observed in the invariant-mass range of 3.4–3.8 GeV/c 2. Upper limits are set on the ratio of branching fractions multiplied by the production cross-section with respect to the→(→ pK− π+) π+ decay for different mass and lifetime hypotheses in the rapidity range from 2.0 to 4.5 and the transverse momentum range from 2.5 to 25 GeV/c. The results from this search are combined with a previously published search for the→ K− π+ decay mode, yielding a maximum local significance of 4.0 standard deviations around the mass of 3620 MeV/c 2, including …

Angular analysis of the rare decay → ϕμ+μ−

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellán Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Daniel Cervenkov,Abbie Jane Chadwick

Journal

Journal of High Energy Physics

Published Date

2021/11

An angular analysis of the rare decay→ ϕμ+ μ− is presented, using proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7, 8 and 13 TeV, corresponding to an integrated luminosity of 8.4 fb− 1. The observables describing the angular distributions of the decay→ ϕμ+ μ− are determined in regions of q 2, the square of the dimuon invariant mass. The results are consistent with Standard Model predictions.

Structural Evolution and Electronic Properties of Intermediate Sized Tin Clusters

Authors

Peter L Rodríguez‐Kessler,Adán R Rodríguez‐Domínguez,Alvaro Muñoz‐Castro

Journal

Advanced Theory and Simulations

Published Date

2021/12

The structural evolution of Tin () clusters has been investigated by using the systematic cluster growth method together with the many‐body Gupta potential. The lowest energy structures are further refined by using density functional theory computations within the accuracy of the Perdew‐Burke‐Ernzerhof (PBE) exchange‐correlation functional and a plane‐wave basis set. Using this approach, the structures and stability trends of Tin clusters in the size range previously reported, are reproduced. New clusters with enhanced stability are found for , 38, 41, 43, 46, 48, 50, 53, 55, and 58 sizes. Tightly packed structures dominate principally for these clusters in which the shape of the structures can be understood based on the encapsulated motif. The geometries of the clusters from Ti33 up to Ti60 adopt oblate forms which is in contrast to the smaller clusters. The vertical ionization potential (vIP) and …

Search for time-dependent violation in and decays

Authors

Roel Aaij,C Abellan Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,Sophie Baker,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Alessandro Camboni,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Abbie Jane Chadwick,Matthew George Chapman,Matthew Charles,Ph Charpentier,Georgios Chatzikonstantinidis,CA Chavez Barajas,Maximilien Chefdeville,Chen Chen

Journal

Physical Review D

Published Date

2021/10/26

A search for time-dependent violation of the charge-parity symmetry in D 0→ K+ K− and D 0→ π+ π− decays is performed at the LHCb experiment using proton-proton collision data recorded from 2015 to 2018 at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb− 1. The D 0 meson is required to originate from a D*(2010)+→ D 0 π+ decay, such that its flavor at production is identified by the charge of the accompanying pion. The slope of the time-dependent asymmetry of the decay rates of D 0 and D 0 mesons into the final states under consideration is measured to be Δ Y K+ K−=(− 2.3±1.5±0.3)× 10− 4, Δ Y π+ π−=(− 4.0±2.8±0.4)× 10− 4, where the first uncertainties are statistical and the second are systematic. These results are compatible with the conservation of the charge-parity symmetry at the level of 2 standard deviations and improve the precision by nearly a factor of 2.

Observation of excited baryons in decays

Authors

Roel Aaij,C Abellán Beteta,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Abbie Jane Chadwick,Matthew George Chapman,Matthew Charles,Ph Charpentier,Georgios Chatzikonstantinidis,CA Chavez Barajas,Maximilien Chefdeville,Chen Chen,Shanzhen Chen,Aleksei Chernov

Journal

Physical Review D

Published Date

2021/11/24

The first observation of the Ω b−→ Ξ c+ K− π− decay is reported using p p collision data at center of mass energies of 7, 8, and 13 TeV collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb− 1. Four excited Ω c 0 baryons are observed in the Ξ c+ K− mass projection of the Ω b−→ Ξ c+ K− π− decays with the significance of each exceeding five standard deviations. They coincide with the states previously observed in prompt p p and e+ e− production. Relative production rates, masses, and natural widths of the states are measured, and a test of spin hypotheses is performed. Moreover, the branching ratio of Ω b−→ Ξ c+ K− π− is measured relative to the Ω b−→ Ω c 0 π− decay mode and a precise measurement of the Ω b− mass of 6044.3±1.2±1. 1− 0.22+ 0.19 MeV is obtained.

Searching for solar KDAR with DUNE

Authors

A Abed Abud,B Abi,R Acciarri,MA Acero,MR Adames,G Adamov,D Adams,M Adinolfi,A Aduszkiewicz,J Aguilar,Z Ahmad,J Ahmed,B Ali-Mohammadzadeh,T Alion,K Allison,S Alonso Monsalve,M Alrashed,C Alt,A Alton,P Amedo,J Anderson,C Andreopoulos,M Andreotti,MP Andrews,F Andrianala,S Andringa,N Anfimov,A Ankowski,M Antoniassi,M Antonova,A Antoshkin,S Antusch,A Aranda-Fernandez,A Ariga,LO Arnold,MA Arroyave,J Asaadi,L Asquith,A Aurisano,V Aushev,D Autiero,M Ayala-Torres,F Azfar,A Back,H Back,JJ Back,C Backhouse,P Baesso,I Bagaturia,L Bagby,N Balashov,S Balasubramanian,P Baldi,B Baller,B Bambah,F Barao,G Barenboim,GJ Barker,W Barkhouse,C Barnes,G Barr,J Barranco Monarca,A Barros,N Barros,JL Barrow,A Basharina-Freshville,A Bashyal,V Basque,E Belchior,JBR Battat,F Battisti,F Bay,JL Bazo Alba,JF Beacom,E Bechetoille,B Behera,L Bellantoni,G Bellettini,V Bellini,O Beltramello,D Belver,N Benekos,C Benitez Montiel,F Bento Neves,J Berger,S Berkman,P Bernardini,RM Berner,H Berns,S Bertolucci,M Betancourt,A Betancur Rodríguez,A Bevan,TJC Bezerra,V Bhatnagar,M Bhattacharjee,S Bhuller,B Bhuyan,S Biagi,J Bian,M Biassoni,K Biery,B Bilki,M Bishai,A Bitadze,A Blake,FDM Blaszczyk,GC Blazey,E Blucher,J Boissevain,S Bolognesi,T Bolton,L Bomben,M Bonesini,M Bongrand,F Bonini,A Booth,C Booth,F Boran,S Bordoni,A Borkum,T Boschi,N Bostan,P Bour,C Bourgeois,SB Boyd,D Boyden,J Bracinik,D Braga,D Brailsford,A Branca,A Brandt,J Bremer,C Brew,E Brianne,SJ Brice,C Brizzolari,C Bromberg,G Brooijmans,J Brooke,A Bross,G Brunetti,M Brunetti,N Buchanan,H Budd,I Butorov,I Cagnoli,D Caiulo,R Calabrese,P Calafiura

Journal

Journal of Cosmology and Astroparticle Physics

Published Date

2021/10/22

The observation of 236MeV muon neutrinos from kaon-decay-at-rest (KDAR) originating in the core of the Sun would provide a unique signature of dark matter annihilation. Since excellent angle and energy reconstruction are necessary to detect this monoenergetic, directional neutrino flux, DUNE with its vast volume and reconstruction capabilities, is a promising candidate for a KDAR neutrino search. In this work, we evaluate the proposed KDAR neutrino search strategies by realistically modeling both neutrino-nucleus interactions and the response of DUNE. We find that, although reconstruction of the neutrino energy and direction is difficult with current techniques in the relevant energy range, the superb energy resolution, angular resolution, and particle identification offered by DUNE can still permit great signal/background discrimination. Moreover, there are non-standard scenarios in which searches at DUNE …

First measurement of the-violating phase in) decays

Authors

R Aaij,C Abellán Beteta,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,CA Aidala,S Aiola,Z Ajaltouni,S Akar,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,G Alkhazov,P Alvarez Cartelle,S Amato,Y Amhis,L An,L Anderlini,A Andreianov,M Andreotti,F Archilli,A Artamonov,M Artuso,K Arzymatov,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,S Baker,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista Leite,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,V Batozskaya,B Batsukh,A Battig,A Bay,M Becker,F Bedeschi,I Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,D Berninghoff,HC Bernstein,C Bertella,E Bertholet,A Bertolin,C Betancourt,F Betti,MO Bettler,Ia Bezshyiko,S Bhasin,J Bhom,L Bian,MS Bieker,S Bifani,P Billoir,M Birch,FCR Bishop,A Bizzeti,M Bjørn,MP Blago,T Blake,F Blanc,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,A Bondar,N Bondar,S Borghi,M Borisyak,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,M Brodski,J Brodzicka,A Brossa Gonzalo,D Brundu,A Buonaura,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,L Calero Diaz,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Camargo Magalhaes,A Camboni,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli,P Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,G Casse,M Cattaneo,G Cavallero,S Celani,J Cerasoli,AJ Chadwick,MG Chapman,M Charles,Ph Charpentier,G Chatzikonstantinidis

Journal

The European Physical Journal C

Published Date

2021/11/1

A flavour-tagged time-dependent angular analysis of decays is presented where the meson is reconstructed through its decay to an pair. The analysis uses a sample of pp collision data recorded with the LHCb experiment at centre-of-mass energies of 7 and , corresponding to an integrated luminosity of . The -violating phase and lifetime parameters of the system are measured to be , and where the first uncertainty is statistical and the second systematic. This is the first time that -violating parameters are measured in the decay with an pair in the final state. The results are consistent with previous measurements in other channels and with the Standard Model predictions.

Observation of the suppressed decay with and measurement of its asymmetry

Authors

Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,C Abellan Beteta,FJ Abudinen Gallego,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Salvatore Aiola,Ziad Ajaltouni,Simon Akar,Johannes Albrecht,Federico Alessio,Michael Alexander,A Alfonso Albero,Zakariya Aliouche,Georgy Alkhazov,P Alvarez Cartelle,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Aleksei Andreianov,Mirco Andreotti,Flavio Archilli,Alexander Artamonov,Marina Artuso,Kenenbek Arzymatov,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Sebastian Bachmann,Marie Bachmayer,JJ Back,P Baladron Rodriguez,Vladislav Balagura,Wander Baldini,J Baptista Leite,Matteo Barbetti,RJ Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Saliha Bashir,Giovanni Bassi,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Andrew Beiter,Vladislav Belavin,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Ia Bezshyiko,Srishti Bhasin,Jihyun Bhom,Lingzhu Bian,Martin Stefan Bieker,Simone Bifani,Pierre Billoir,Matthew Birch,Fionn Caitlin Ros Bishop,Alexander Bitadze,Andrea Bizzeti,Mikkel Bjørn,Michele Piero Blago,Thomas Blake,Frederic Blanc,Steven Blusk,Dana Bobulska,Julian Alexander Boelhauve,O Boente Garcia,Thomas Boettcher,Alexey Boldyrev,Alexander Bondar,Nikolay Bondar,Silvia Borghi,Maxim Borisyak,Martino Borsato,Jozef Tomasz Borsuk,Sonia Amina Bouchiba,TJV Bowcock,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,A Brea Rodriguez,Michael Brodski,Jolanta Brodzicka,A Brossa Gonzalo,Davide Brundu,Annarita Buonaura,Laura Buonincontri,Aodhan Tomas Burke,Christopher Burr,Albert Bursche,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,Lukas Calefice,L Calero Diaz,Stefano Cali,Ryan Calladine,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,Pierluigi Campana,AF Campoverde Quezada,Simone Capelli,Lorenzo Capriotti,Angelo Carbone,Giovanni Carboni,Roberta Cardinale,Alessandro Cardini,Ina Carli,Paolo Carniti,L Carus,K Carvalho Akiba,A Casais Vidal,Gianluigi Casse,Marco Cattaneo,Giovanni Cavallero,Sara Celani,Jacopo Cerasoli,Daniel Cervenkov

Journal

Physical Review D

Published Date

2021/12/27

A study of Λ b 0 baryon decays to the D p K− final state is presented based on a proton-proton collision data sample corresponding to an integrated luminosity of 9 fb− 1 collected with the LHCb detector. Two Λ b 0 decays are considered, Λ b 0→ D p K− with D→ K− π+ and D→ K+ π−, where D represents a superposition of D 0 and D 0 states. The latter process is expected to be suppressed relative to the former, and is observed for the first time. The ratio of branching fractions of the two decays is measured, and the C P asymmetry of the suppressed mode, which is sensitive to the Cabibbo-Kobayashi-Maskawa angle γ, is also reported.

See List of Professors in Adan Ruben Rodriguez Dominguez University(Universidad Autónoma de San Luis Potosí)

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What is Adan Ruben Rodriguez Dominguez's h-index at Universidad Autónoma de San Luis Potosí?

The h-index of Adan Ruben Rodriguez Dominguez has been 56 since 2020 and 77 in total.

What are Adan Ruben Rodriguez Dominguez's top articles?

The articles with the titles of

Structures of Ni-doped Bn (n= 1-13) clusters: A Computational Study

Helium identification with LHCb

Evaluation of the implementation of a community health worker-led COVID-19 contact tracing intervention in Chiapas, Mexico, from March 2020 to December 2021

Observation of and decays

Performance of a modular ton-scale pixel-readout liquid argon Time Projection Chamber

The DUNE Far Detector Vertical Drift Technology, Technical Design Report

Measurement of the CKM angle γ in the B 0 → D K ∗ 0 channel using self-conjugate D → K S 0 h + h - decays

Doping liquid argon with xenon in ProtoDUNE Single-Phase: effects on scintillation light

...

are the top articles of Adan Ruben Rodriguez Dominguez at Universidad Autónoma de San Luis Potosí.

What are Adan Ruben Rodriguez Dominguez's research interests?

The research interests of Adan Ruben Rodriguez Dominguez are: theoretical physics, condensed matter, mathematical physics, electronic and magnetic structure of small TM clusters, their stabi

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Adan Ruben Rodriguez Dominguez has 19,734 citations in total.

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