Patricia C Magalhaes
University of Bristol
H-index: 46
Europe-United Kingdom
About Patricia C Magalhaes
Patricia C Magalhaes, With an exceptional h-index of 46 and a recent h-index of 44 (since 2020), a distinguished researcher at University of Bristol, specializes in the field of Phenomenology in Particle Physics, Three-body decays, CP-violation.
His recent articles reflect a diverse array of research interests and contributions to the field:
arXiv: Tracking of charged particles with nanosecond lifetimes at LHCb
Tracking of charged particles with nanosecond lifetimes at LHCb
Summary of CKM 2023 Working Group 7: "Mixing and CP violation in the D system: , , , , DCPV in decays"
Giant CP violation in charmless three-body meson decays at LHCb: all order formalism for meson-meson final state interactions
Local protection bubbles: an interpretation of the slowdown in the spread of coronavirus in the city of São Paulo, Brazil, in July 2020
and production in PbNe collisions
Search for the lepton-flavour violating decays B0→ K* 0τ±μ∓
Direct violation in charmless three-body decays of mesons
Patricia C Magalhaes Information
University | University of Bristol |
|---|---|
Position | ___ |
Citations(all) | 7681 |
Citations(since 2020) | 6890 |
Cited By | 1027 |
hIndex(all) | 46 |
hIndex(since 2020) | 44 |
i10Index(all) | 101 |
i10Index(since 2020) | 100 |
University Profile Page | University of Bristol |
Patricia C Magalhaes Skills & Research Interests
Phenomenology in Particle Physics
Three-body decays
CP-violation
Top articles of Patricia C Magalhaes
arXiv: Tracking of charged particles with nanosecond lifetimes at LHCb
Authors
Roel Aaij,Shinichi Okamura,Matthew John Bradley,Gregory Ciezarek,Maciej Wojciech Dudek,Paula Collins,Leonardo Santoro,Nico Kleijne,Wenbin Qian,Ned Francis Howarth,Julio Novoa Fernandez,Jie Wu,Aodhan Tomas Burke,Tomasz Szumlak,Jennifer Clare Smallwood,Serena Maccolini,Andrzej Kupsc,Marcel Merk,Artem Okhotnikov,Paula Garcia Moreno,Alexander Bitadze,Domenico Galli,Zirui Wang,Lucio Anderlini,Pavel Krokovny,Gianfranco Morello,Andrea Merli,Jiayin Sun,Ivan Polyakov,Carmen Giugliano,Pierfrancesco Cifra,Pei-Rong Li,Guillaume Pietrzyk,Paul Nathaniel Swallow,Giorgia Tonani,Leonid Kravchuk,Shuangli Yang,Menglin Xu,Cheuk Ping Wong,Francesca Swystun,Ayomide Matthew Adefisoye,Thomas Kirn,Gaya Benane,Yanxi Wu,Shulei Zhang,Luke George Scantlebury Smead,Niels Tuning,Bogdan Kutsenko,Sebastian Bachmann,Marie Bachmayer,Zhenzi Wang,Mindaugas Sarpis,Carina Trippl,Timothy Evans,Giovanni Punzi,Da Yu Tou,Davide Nicotra,Neville Harnew,Camilla De Angelis,Xiaofan Hu,Izabela Juszczak,Daniel James David Thompson,Fionn Caitlin Ros Bishop,Marcin Chrzaszcz,Jonathan Edward Davies,Sune Jakobsen,Yuxi Gao,Marius Maehlum Halvorsen,Guido Haefeli,Sanqiang Qu,Christoph Langenbruch,Sergey Barsuk,Florin Maciuc,Alexander Davidson,Davide Pinci,Miriam Lucio Martinez,Chenjia Zhang,Alice Biolchini,Radoslav Marchevski,Sigrid Scherl,Yangheng Zheng,Daria Strekalina,Giacomo Graziani,Nikolay Nikitin,Oleg Stenyakin,Yuki Fujii,Vladimir Chulikov,Louis Lenard Gerken,Mick Mulder,Michele Atzeni,Sascha Stahl,Giuliana Galati,Sebastian Neubert,Artur Ishteev,Christopher Jones,Alexandru Tudor Grecu,Robbert Erik Geertsema,Mikhail Zavertyaev,Eluned Smith,Gabriele Martelli,Tai-hua Lin,Manuel Guittiere,Anna Danilina,Valeriia Zhovkovska,Jascha Peter Grabowski,Jan-Marc Basels,Matthew Needham,Kunal Garg,Burkhard Schmidt,Zeqing Mu,Thomas Ackernley,Justin Bartz,Erika De Lucia,Shuchong Ding,Ivan Belyaev,Edward Brendan Shields,Xueting Yang,Patricia Camargo Magalhaes,Anni Kauniskangas,Alexander Leon Gilman,Abolhassan Jawahery,Fanjie Meng,Mark Waterlaat,Hengne Li,Richard Morgan Williams,Bhagyashree Pagare,Lars Eklund,Luis Miguel Garcia Martin,Alessandra Gioventù,Paul Andre Günther,Alvaro Gomes,Joshua Ethan Horswill,Matthew Kenzie,Holger Stevens,Desmond Mzamo Shangase,Daniele Passaro,Micol Olocco,Kimberley Vos,Angelo Carbone,Olivier Deschamps,Baasansuren Batsukh,Saul Calderon Ramirez,Katharina Müller,Philipp Roloff,Josh Bex,Massimiliano Fiorini,Patrick Spradlin,Domenico Riccardi,Liupan An,Youhua Yang
Published Date
2024/3/14
A method is presented to reconstruct charged particles with lifetimes between 10 ps and 10 ns, which considers a combination of their decay products and the partial tracks created by the initial charged particle. Using the Ξ-baryon as a benchmark, the method is demonstrated with simulated events and proton-proton collision data at
Tracking of charged particles with nanosecond lifetimes at LHCb
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,Haoran Bao,J Leite,Matteo Barbetti,Ivanildo Rui Barbosa,RJ Barlow,Mikhail Barnyakov,Sergey Barsuk,William Barter,Matteo Bartolini,Justin Bartz,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Baasansuren Batsukh,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,IB Bediaga,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Eli Ben-Haim,Alexander Berezhnoy,Roland Bernet,S Bernet Andres,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,Anatoly Butkevich,Jordy Sebastiaan Butter,Jan Buytaert,Wiktor Byczynski,Sandro Cadeddu,Hao Cai,Roberto Calabrese,S Calderon Ramirez,Lukas Calefice,Stefano Cali,Marta Calvi,M Calvo Gomez,P Camargo Magalhaes,JI 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:2403.09483
Published Date
2024/3/14
A method is presented to reconstruct charged particles with lifetimes between 10 ps and 10 ns, which considers a combination of their decay products and the partial tracks created by the initial charged particle. Using the baryon as a benchmark, the method is demonstrated with simulated events and proton-proton collision data at TeV, corresponding to an integrated luminosity of 2.0 fb collected with the LHCb detector in 2018. Significant improvements in the angular resolution and the signal purity are obtained. The method is implemented as part of the LHCb Run 3 event trigger in a set of requirements to select detached hyperons. This is the first demonstration of the applicability of this approach at the LHC, and the first to show its scaling with instantaneous luminosity.
Summary of CKM 2023 Working Group 7: "Mixing and CP violation in the D system: , , , , DCPV in decays"
Authors
Patricia C Magalhães,Tara Nanut Petrič,Stefan Schacht
Journal
arXiv preprint arXiv:2402.06406
Published Date
2024/2/9
We summarize the results of Working Group 7 at the 12th International Workshop on the CKM Unitarity Triangle (CKM 2023) which took place in Santiago de Compostela, Spain, 18--22 September 2023.
Giant CP violation in charmless three-body meson decays at LHCb: all order formalism for meson-meson final state interactions
Authors
Alba Reyes-Torrecilla,Jose R Pelaez,Patricia C Magalhaes
Journal
arXiv preprint arXiv:2403.11581
Published Date
2024/3/18
LHCb has observed giant CP violation in localized regions of the Dalitz plots of B to three charmless light mesons. This has been interpreted as an enhancement due to strong two-body final state interactions. In this talk, we show how such interactions, described with dispersive analyses of data, can be implemented beyond the leading order expansion in the two-body re-scattering amplitude.
Local protection bubbles: an interpretation of the slowdown in the spread of coronavirus in the city of São Paulo, Brazil, in July 2020
Authors
Jose Paulo Guedes Pinto,Patrícia Camargo Magalhães,Gerusa Maria Figueiredo,Domingos Alves,Diana Maritza Segura Angel
Journal
Cadernos de Saúde Pública
Published Date
2023/12/15
After four months of fighting the pandemic, the city of São Paulo, Brazil, entered a phase of relaxed social distancing measures in July 2020. Simultaneously, there was a decline in the social distancing rate and a reduction in the number of cases, fatalities, and hospital bed occupancy. To understand the pandemic dynamics in the city of São Paulo, we developed a multi-agent simulation model. Surprisingly, the counter-intuitive results of the model followed the city’s reality. We argue that this phenomenon could be attributed to local bubbles of protection that emerged in the absence of contagion networks. These bubbles reduced the transmission rate of the virus, causing short and temporary reductions in the epidemic curve - but manifested as an unstable equilibrium. Our hypothesis aligns with the virus spread dynamics observed thus far, without the need for ad hoc assumptions regarding the natural thresholds of collective immunity or the heterogeneity of the population’s transmission rate, which may lead to erroneous predictions. Our model was designed to be user-friendly and does not require any scientific or programming expertise to generate outcomes on virus transmission in a given location. Furthermore, as an input to start our simulation model, we developed the COVID-19 Protection Index as an alternative to the Human Development Index, which measures a given territory vulnerability to the coronavirus and includes characteristics of the health system and socioeconomic development, as well as the infrastructure of the city of São Paulo.
and production in PbNe collisions
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 SBaptista de ouza 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 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
Journal
The European Physical Journal C
Published Date
2023/7/25
The first measurement of and production in PbNe collisions by the LHCb experiment in its fixed-target configuration is reported. The production of and mesons is studied with a beam of lead ions with an energy of 2.5 per nucleon colliding on gaseous neon targets at rest, corresponding to a nucleon-nucleon centre-of-mass energy of . The / production cross-section ratio is studied as a function of rapidity, transverse momentum and collision centrality. These data are compared with measurements from collisions at the same energy and show no difference in the observed suppression trend when comparing and PbNe peripheral collisions with PbNe central collisions.
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.
Direct violation in charmless three-body decays of mesons
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,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
2023/7/13
Measurements of C P asymmetries in charmless three-body decays of B±mesons are reported using proton-proton collision data collected by the LHCb detector, corresponding to an integrated luminosity of 5.9 fb− 1. The previously observed C P asymmetry in B±→ π±K+ K− decays is confirmed, and C P asymmetries are observed with a significance of more than five standard deviations in the B±→ π±π+ π− and B±→ K±K+ K− decays, while the C P asymmetry of B±→ K±π+ π− decays is confirmed to be compatible with zero. The distributions of these asymmetries are also studied as a function of the three-body phase space and suggest contributions from rescattering and resonance interference processes. An indication of the presence of the decays B±→ π±χ c 0 (1 P) in both B±→ π±π+ π− and B±→ π±K+ K− decays is observed, as is C P violation involving these amplitudes.
Enhanced Charm Asymmetries from Final State Interactions
Authors
Ignacio Bediaga,Tobias Frederico,Patricia C Magalhães
Journal
Physical Review Letters
Published Date
2023/8/3
We show that final state interactions (FSI) within a C P T invariant two-channel framework can enhance the charge-parity (C P) violation difference between D 0→ π− π+ and D 0→ K− K+ decays up to the current experimental value. This result relies upon (i) the dominant tree level diagram,(ii) the well-known experimental values for the D 0→ π− π+ and D 0→ K− K+ branching ratios, and (iii) the π π→ π π and π π→ K K scattering data to extract the strong phase difference and inelasticity. Based on well-grounded theoretical properties, we find the sign and bulk value of the Δ A C P and A C P (D 0→ π− π+) recently observed by the LHCb Collaboration.
Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in Collisions
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,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 letters
Published Date
2023/7/24
The nuclear modification factor of neutral pions is measured in proton-lead collisions collected at a center-of-mass energy per nucleon of 8.16 TeV with the LHCb detector. The π 0 production cross section is measured differentially in transverse momentum (p T) for 1.5< p T< 10.0 GeV and in center-of-mass pseudorapidity (η c. m.) regions 2.5< η c. m.< 3.5 (forward) and− 4.0< η c. m.<− 3.0 (backward) defined relative to the proton beam direction. The forward measurement shows a sizable suppression of π 0 production, while the backward measurement shows the first evidence of π 0 enhancement in proton-lead collisions at the LHC. Together, these measurements provide precise constraints on models of nuclear structure and particle production in high-energy nuclear collisions.
Measurement of the Prompt Nuclear Modification Factor in 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,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,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
Physical review letters
Published Date
2023/9/6
The production of prompt D 0 mesons in proton-lead collisions in both the forward and backward rapidity regions at a center-of-mass energy per nucleon pair of s N N= 8.16 TeV is measured by the LHCb experiment. The nuclear modification factor of prompt D 0 mesons is determined as a function of the transverse momentum p T, and the rapidity in the nucleon-nucleon center-of-mass frame y*. In the forward rapidity region, significantly suppressed production with respect to p p collisions is measured, which provides significant constraints on models of nuclear parton distributions and hadron production down to the very low Bjorken-x region of∼ 10− 5. In the backward rapidity region, a suppression with a significance of 2.0–3.8 standard deviations compared to parton distribution functions in a nuclear environment expectations is found in the kinematic region of p T> 6 GeV/c and− 3.25< y*<− 2.5, corresponding to x …
The Covid-19 Protection Index (CPI) as a way to identify vulnerabilities and disparities across Brazilian territories
Authors
Bruna Gaudencio Guimarães,Maira Begalli,Patrícia Magalhães,Pamela M Chiroque-Solano,Maria Carolina Maziviero,José Paulo Guedes Pinto
Published Date
2023/5/4
In Brazil, the Covid-19 pandemic spread across an extremely unequal and exclusory territory, disproportionately affecting the most vulnerable populations. In order to identify how living and habitability conditions and their overlap with gender, race, and class affect the impact of Covid-19 on certain social groups, the “Ação Covid-19” research group developed the Covid-19 Protection Index (CPI) as an alternative to the Human Development Index to measure inequalities in the context of the pandemic. Our aim was to examine specific territories (states, cities, and neighborhoods) and demonstrate how the spread of the SARS-CoV-2 virus could be associated with a socially exclusory model of territorial occupation, what regions and populations would be most severely affected, and who would suffer most if measures to mitigate the spread of the pandemic were not taken (potentially increasing these populations …
Measurement of the mass dependence of the transverse momentum of lepton pairs in Drell-Yan production in proton-proton collisions at√{s}= 13 TeV
Authors
Armen Tumasyan,Wolfgang Adam,Janik Walter Andrejkovic,Thomas Bergauer,Suman Chatterjee,Marko Dragicevic,A Escalante Del Valle,Rudolf Fruehwirth,Manfred Jeitler,Natascha Krammer,Lukas Lechner,Dietrich Liko,Ivan Mikulec,Peter Paulitsch,Florian Michael Pitters,Jochen Schieck,Robert Schöfbeck,Markus Spanring,Sebastian Templ,Wolfgang Waltenberger,C-E Wulz,Mohamed Rashad Darwish,Eddi A De Wolf,Tahys Janssen,Tomas Kello,Aleksandra Lelek,H Rejeb Sfar,P Van Mechelen,S Van Putte,N Van Remortel,Freya Blekman,Emil Sørensen Bols,Jorgen D’Hondt,Martin Delcourt,H El Faham,Steven Lowette,Seth Moortgat,Alexander Morton,Denise Müller,Abanti Ranadhir Sahasransu,Stefaan Tavernier,W Van Doninck,P Van Mulders,Diego Beghin,Bugra Bilin,Barbara Clerbaux,Gilles De Lentdecker,Laurent Favart,Anastasia Grebenyuk,Amandeep Kaur Kalsi,Kyeongpil Lee,Mostafa Mahdavikhorrami,Inna Makarenko,Louis Moureaux,Laurent Pétré,Andrey Popov,Nicolas Postiau,Elizabeth Starling,Laurent Thomas,M Vanden Bemden,C Vander Velde,P Vanlaer,D Vannerom,L Wezenbeek,T Cornelis,D Dobur,J Knolle,L Lambrecht,G Mestdach,M Niedziela,C Roskas,A Samalan,K Skovpen,M Tytgat,B Vermassen,M Vit,A Bethani,G Bruno,F Bury,C Caputo,P David,C Delaere,IS Donertas,A Giammanco,K Jaffel,Sa Jain,Vincent Lemaitre,Kuntal Mondal,Jessica Prisciandaro,Angela Taliercio,Maksym Teklishyn,Tu Thong Tran,Pietro Vischia,Sébastien Wertz,GA Alves,Carsten Hensel,Arthur Moraes,WL Aldá Júnior,M Alves Gallo Pereira,M Barroso Ferreira Filho,H Brandao Malbouisson,Wagner Carvalho,Jose Chinellato,Eliza Melo Da Costa,Gustavo Gil Da Silveira,Dilson de Jesus Damiao,S Fonseca De Souza,D Matos Figueiredo,C Mora Herrera,K Mota Amarilo,Luiz Mundim,Helio Nogima,P Rebello Teles,Alberto Santoro,SM Silva Do Amaral,Andre Sznajder,Mauricio Thiel,F Torres Da Silva De Araujo,A Vilela Pereira,Cesar Augusto Bernardes,Luigi Calligaris,TR Fernandez Perez Tomei,EM Gregores,DS Lemos,Pedro G Mercadante,Sergio F Novaes,Sandra S Padula,Aleksandar Aleksandrov,Georgy Antchev,Roumyana Hadjiiska,Plamen Iaydjiev,Milena Misheva,Mircho Rodozov,Mariana Shopova,Georgi Sultanov,Anton Dimitrov,Todor Ivanov,Leander Litov,Borislav Pavlov,Peicho Petkov,Anton Petrov,Tongguang Cheng,Qianying Guo,Tahir Javaid,Monika Mittal,Hanwen Wang,L Yuan,Muhammad Ahmad,Gerry Bauer,Candan Dozen
Journal
The European Physical Journal C
Published Date
2023/7/17
The double differential cross sections of the Drell–Yan lepton pair (, dielectron or dimuon) production are measured as functions of the invariant mass , transverse momentum , and . The observable, derived from angular measurements of the leptons and highly correlated with , is used to probe the low- region in a complementary way. Dilepton masses up to 1 are investigated. Additionally, a measurement is performed requiring at least one jet in the final state. To benefit from partial cancellation of the systematic uncertainty, the ratios of the differential cross sections for various ranges to those in the Z mass peak interval are presented. The collected data correspond to an integrated luminosity of 36.3 of proton–proton collisions recorded with the CMS detector at the LHC at a centre-of-mass energy of 13. Measurements are compared with predictions based on perturbative …
Search for direct violation in charged charmless decays
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,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
2023/7/20
Measurements of C P asymmetry in charmless B→ P V decays are presented, where P and V denote a pseudoscalar and a vector meson, respectively. Five different B→ P V decays from four final states, B±→ π±π+ π−, B±→ K±π+ π−, B±→ K±K+ K− and B±→ π±K+ K− are analyzed. The measurements are based on a method that does not require full amplitude analyses, and are performed using proton-proton collision data at a center-of-mass energy of 13 TeV collected by LHCb between 2015 and 2018, corresponding to an integrated luminosity of 5.9 fb− 1. In the π+ π− P-wave, in the region dominated by the B±→ ρ (770) 0 K±decay, a C P asymmetry of A C P=+ 0.150±0.019±0.011 is measured, where the first uncertainty is statistical and the second is systematic. This is the first observation of C P violation in this process. For the other four decay channels, in regions dominated by the B±→ ρ (770) 0 π±, B±→ K …
Amplitude analysis of the decay and baryon polarization measurement in semileptonic beauty hadron 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 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,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 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
Journal
Physical Review D
Published Date
2023/7/28
An amplitude analysis of Λ c+→ p K− π+ decays together with a measurement of the Λ c+ polarization vector in semiōleptonic beauty hadron decays is presented. A sample of 400 000 candidates is selected from proton-proton collisions recorded by the LHCb detector at a center-of-mass energy of 13 TeV. An amplitude model is developed and the resonance fractions as well as two-and three-body decay parameters are reported. The mass and width of the Λ (2000) state are also determined. A significant Λ c+ polarization is found. A large sensitivity of the Λ c+→ p K− π+ decay to the polarization is seen, making the amplitude model suitable for Λ c+ polarization measurements in other systems.
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.
Measurement of CP asymmetries in and decays
Authors
Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos 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
Journal of High Energy Physics
Published Date
2023/4
Searches for CP violation in the decays and are performed using pp collision data corresponding to 6 fb− 1 of integrated luminosity collected by the LHCb experiment. The calibration channels are used to remove production and detection asymmetries. The resulting CP-violating asymmetries are
Measurement of antiproton production from antihyperon decays in 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,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,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
The European Physical Journal C
Published Date
2023/6/27
The interpretation of cosmic antiproton flux measurements from space-borne experiments is currently limited by the knowledge of the antiproton production cross-section in collisions between primary cosmic rays and the interstellar medium. Using collisions of protons with an energy of 6.5 incident on helium nuclei at rest in the proximity of the interaction region of the LHCb experiment, the ratio of antiprotons originating from antihyperon decays to prompt production is measured for antiproton momenta between 12 and . The dominant antihyperon contribution, namely decays from promptly produced particles, is also exclusively measured. The results complement the measurement of prompt antiproton production obtained from the same data sample. At the energy scale of this measurement, the antihyperon contributions to antiproton production are observed to be significantly larger than …
Measurement of τ L using the B s 0→ J/ψ η decay mode
Authors
C Abellan Beteta,H Afsharnia,Z Ajaltouni,A Bailly-reyre,A Beiter,V Belavin,D Berninghoff,HC Bernstein,MJ Bradley,A Bursche,H Cai,R Calladine,L Carus,MG Chapman,L Dieste Maronas,A Dolmatov,L Douglas,S Eidelman,B Garcia Plana,D Gerick,A Guth,J Hu,X Huang,R Kopecna,O Kot,J Kubat,GJ Kunde,I Longstaff,S Maddrell-Mander,MW Majewski,PJ Marshall,E Millard,M-N Minard,P Neustroev,R Newcombe,S Nieswand,ME Olivares,M Petric,A Petrov,M Poliakova,R Rajagopalan,C Remon Alepuz,JD Roth,J Ruiz Vidal,B Spaan,E Spiridenkov,O Stenyakin,AR Tanner,E Trifonova,A Vagner,A Vorobyev,V Vorobyev,C Weisser,I Williams,Q Xu,Y Zhang,R Aaij,ASW Abdelmotteleb,F Abudinén,T Ackernley,B Adeva,M Adinolfi,C Agapopoulou,CA Aidala,S Aiola,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,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,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G Bencivenni,E Ben-Haim,A Berezhnoy,R Bernet,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
Published Date
2023/7/17
Using a proton–proton collision data sample collected by the LHCb detector and corresponding to an integrated luminosity of 5.7 fb-1, the lifetime of the light Bs0 mass eigenstate, τL, is measured using the Bs0→ J/ψη decay mode to be τL= 1.445±0.016 (stat)±0.008 (syst) ps. A combination of this result with a previous LHCb analysis using an independent dataset corresponding to 3 fb-1 of integrated luminosity gives τL= 1.452±0.014±0.007±0.002 ps, where the first uncertainty is statistical, the second due to the uncorrelated part of the systematic uncertainty and the third due to the correlated part of the systematic uncertainty.
Observation of sizeable? contribution to? c1 (3872)? p+ p-J=? decays
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,M Bjorn,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 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,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 Camargo Magalhaes,P Campana,DH Perez,AF Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,I Carli
Published Date
2023/7/27
摘要 Resonant structures in the dipion mass spectrum from & chi; c1 (3872) & RARR; & pi;+ & pi;-J= & psi; decays, produced via B+ & RARR; K+ & chi; c1 (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 & chi; c1 (3872) & RARR; & omega; J= & psi; decay is established for the first time,(21.4 & PLUSMN; 2.3 & PLUSMN; 2.0)%, with a significance of more than 7.1 & sigma;. The amplitude of isospin violating decay, & chi; c1 (3872) & RARR; & rho; 0J= & psi;, relative to isospin conserving decay, & chi; c1 (3872) & RARR; & omega; J= & psi;, is properly determined, and it is a factor of 6 larger than expected for a pure charmonium state.
Patricia C Magalhaes FAQs
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The articles with the titles of
arXiv: Tracking of charged particles with nanosecond lifetimes at LHCb
Tracking of charged particles with nanosecond lifetimes at LHCb
Summary of CKM 2023 Working Group 7: "Mixing and CP violation in the D system: , , , , DCPV in decays"
Giant CP violation in charmless three-body meson decays at LHCb: all order formalism for meson-meson final state interactions
Local protection bubbles: an interpretation of the slowdown in the spread of coronavirus in the city of São Paulo, Brazil, in July 2020
and production in PbNe collisions
Search for the lepton-flavour violating decays B0→ K* 0τ±μ∓
Direct violation in charmless three-body decays of mesons
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are the top articles of Patricia C Magalhaes at University of Bristol.
What are Patricia C Magalhaes's research interests?
The research interests of Patricia C Magalhaes are: Phenomenology in Particle Physics, Three-body decays, CP-violation
What is Patricia C Magalhaes's total number of citations?
Patricia C Magalhaes has 7,681 citations in total.
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