Olli Lupton
École Polytechnique Fédérale de Lausanne
H-index: 123
Europe-Switzerland
About Olli Lupton
Olli Lupton, With an exceptional h-index of 123 and a recent h-index of 95 (since 2020), a distinguished researcher at École Polytechnique Fédérale de Lausanne,
His recent articles reflect a diverse array of research interests and contributions to the field:
Compatibility and combination of world W-boson mass measurements
Test of Lepton Universality in Decays
Direct violation in charmless three-body decays of mesons
Observation of sizeable? contribution to? c1 (3872)? p+ p-J=? decays
The LHCb upgrade I
Measurement of CP asymmetries in and decays
Observation of sizeable contribution to decays
Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in Collisions
Olli Lupton Information
University | École Polytechnique Fédérale de Lausanne |
|---|---|
Position | Blue Brain Project |
Citations(all) | 57921 |
Citations(since 2020) | 36269 |
Cited By | 29829 |
hIndex(all) | 123 |
hIndex(since 2020) | 95 |
i10Index(all) | 477 |
i10Index(since 2020) | 453 |
University Profile Page | École Polytechnique Fédérale de Lausanne |
Top articles of Olli Lupton
Compatibility and combination of world W-boson mass measurements
Authors
LHC-TeV MW Working Group,S Amoroso,N Andari,W Barter,J Bendavid,M Boonekamp,S Farry,M Grünewald,C Hays,R Hunter,J Kretzschmar,O Lupton,M Pili,M Ramos Pernas,B Tuchming,M Vesterinen,A Vicini,C Wang,M Xu
Journal
The European Physical Journal C
Published Date
2024/5/2
The compatibility of W-boson mass measurements performed by the ATLAS, LHCb, CDF, and D0 experiments is studied using a coherent framework with theory uncertainty correlations. The measurements are combined using a number of recent sets of parton distribution functions (PDF), and are further combined with the average value of measurements from the Large Electron–Positron collider. The considered PDF sets generally have a low compatibility with a suite of global rapidity-sensitive Drell–Yan measurements. The most compatible set is CT18 due to its larger uncertainties. A combination of all measurements yields a value of MeV with the CT18 set, but has a probability of compatibility of 0.5% and is therefore disfavoured. Combinations are performed removing each measurement individually, and a 91% probability of compatibility is obtained when the CDF measurement is removed. The …
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.
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.
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.
The LHCb upgrade I
Authors
Roel Aaij,Ahmed Sameh Wagih Abdelmotteleb,Carlos Abellan Beteta,Fernando Jesus Abudinén,Cyrille Achard,Thomas Ackernley,Bernardo Adeva,Marco Adinolfi,Patrik Harri Adlarson,Hossein Afsharnia,Christina Agapopoulou,Christine Angela Aidala,Ziad Ajaltouni,Simon Akar,Kazuyoshi Akiba,Pietro Albicocco,Johannes Albrecht,Federico Alessio,Michael Alexander,Alejandro Alfonso Albero,Zakariya Aliouche,Paula Alvarez Cartelle,Renaud Amalric,Sandra Amato,Jake Lewis Amey,Yasmine Amhis,Liupan An,Lucio Anderlini,Martin Andersson,Alessandro Andreani,Aleksei Andreianov,Mirco Andreotti,Dimitra Andreou,Jason Andrews,Mario Anelli,Andrea Anjam,Dong Ao,Flavio Archilli,Kevin Arnaud,Alexander Artamonov,Marina Artuso,Joe Ashby,Elie Aslanides,Michele Atzeni,Benjamin Audurier,Diogo Ayres Rocha,Irene Bachiller Perea,Sebastian Bachmann,Marie Bachmayer,John Back,Aurelien Bailly-Reyre,Pablo Baladron Rodriguez,Vladislav Balagura,Gabriele Balbi,Wander Baldini,Alessandro Balla,Michel Baltazar,Hans Band,Juan Baptista de Souza Leite,Matteo Barbetti,Paul Barclay,Roger Barlow,Sergey Barsuk,William Barter,Matteo Bartolini,Fedor Baryshnikov,Jan-Marc Basels,Giovanni Bassi,Mateusz Baszczyk,Joao Carlos Batista Lopes,Baasansuren Batsukh,Alexander Battig,Aurelio Bay,Anja Beck,Maik Becker,Franco Bedeschi,Ignacio Bediaga,Christophe Beigbeder-Beau,Andrew Beiter,Samuel Belin,Violaine Bellee,Konstantin Belous,Ilia Belov,Ivan Belyaev,Gaya Benane,Giovanni Bencivenni,Massimo Benettoni,Eli Ben-Haim,Alexander Berezhnoy,Florian Bernard,Roland Bernet,Sergi Bernet Andres,Daniel Berninghoff,Harris Conan Bernstein,Claudia Bertella,Alessandro Bertolin,Christopher Betancourt,Federico Betti,Iaroslava Bezshyiko,Oleg Bezshyyko,Srishti Bhasin,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,Boris Bochin,Julian Alexander Boelhauve,Oscar Boente Garcia,Thomas Boettcher,Galina Bogdanova,Ianina Boiaryntseva,Alexey Boldyrev,Carolina Bolognani,Riccardo Bolzonella,Nikolay Bondar,Michael Jack Booth,Federica Borgato,Silvia Borghi,Martino Borsato,Jozef Tomasz Borsuk,Henk Boterenbrood,Sonia Amina Bouchiba,Themistocles Bowcock,Andriy Boyaryntsev,Alexandre Boyer,Concezio Bozzi,Matthew John Bradley,Svende Braun,Alexandre Brea Rodriguez,Giuseppe Bregliozzi,Kieran Bridges,Matthieu Marc Joel Briere,Matthew Brock,Michael Brodski,Jolanta Brodzicka,Arnau Brossa Gonzalo,Charles Brown,James David Brown
Published Date
2023/5/31
The LHCb upgrade represents a major change of the experiment. The detectors have been almost completely renewed to allow running at an instantaneous luminosity five times larger than that of the previous running periods. Readout of all detectors into an all-software trigger is central to the new design, facilitating the reconstruction of events at the maximum LHC interaction rate, and their selection in real time. The experiment's tracking system has been completely upgraded with a new pixel vertex detector, a silicon tracker upstream of the dipole magnet and three scintillating fibre tracking stations downstream of the magnet. The whole photon detection system of the RICH detectors has been renewed and the readout electronics of the calorimeter and muon systems have been fully overhauled. The first stage of the all-software trigger is implemented on a GPU farm. The output of the trigger provides a combination of totally reconstructed physics objects, such as tracks and vertices, ready for final analysis, and of entire events which need further offline reprocessing. This scheme required a complete revision of the computing model and rewriting of the experiment's software.
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
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.
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.
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 …
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.
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.
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.
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.
Study of Bc+ decays to charmonia and three light hadrons
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,Y Gan,G Gong,C Gu,X Hu,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,X Jiang,Y Li,S Liu,Y Lu,L Ma,S Sheng,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 Fu,J He,W Huang,H Liu,Q Liu,X Lyu,R Ma,D Popov,W Qian,J Qin,Trejo RI Rabadan,G Tuci,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,Y Hou,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
Journal
Journal of High Energy Physics
Published Date
2022
Study of Bc+ decays to charmonia and three light hadrons КОРЗИНА ПОИСК НАВИГАТОР СЕССИЯ КОНТАКТЫ ИНФОРМАЦИЯ О ПУБЛИКАЦИИ eLIBRARY ID: 48145117 EDN: SIAIIT DOI: 10.1007/JHEP01(2022)065 STUDY OF BC+ DECAYS TO CHARMONIA AND THREE LIGHT HADRONS 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. , GAN Y. , GONG G. , GU C. , HU X. , 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. , …
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.
arXiv : Search for the decay
Authors
Roel Aaij,Diego Torres Machado,Matthew John Bradley,Gregory Ciezarek,Maciej Wojciech Dudek,Paula Collins,Roberto Piandani,Nico Kleijne,Wenbin Qian,Halime Sazak,Simone Meloni,Aodhan Tomas Burke,Tomasz Szumlak,Jennifer Clare Smallwood,Alessandro Di Cicco,Serena Maccolini,Madhan Mohan,Lakshan Ram,Marcel Merk,Paula Garcia Moreno,Alexander Bitadze,Konstantin Gizdov,Marie-Noelle Minard,Daniel Berninghoff,Pavel Krokovny,Gianfranco Morello,Andrea Merli,Tamaki Holly Mcgrath,Ivan Polyakov,Carmen Giugliano,Ryan Newcombe,Guillaume Pietrzyk,Paul Nathaniel Swallow,Stoyan Miroslavov Trilov,Leonid Kravchuk,Tatiana Ovsiannikova,Mikkel Bjørn,Shuangli Yang,Menglin Xu,Yutong Li,Veronika Chobanova,Thomas Kirn,Matteo Palutan,Shulei Zhang,Luke George Scantlebury Smead,Gerhard Raven,Mauro Piccini,Sebastian Bachmann,Marie Bachmayer,Zhenzi Wang,Carina Trippl,Kazuyoshi Carvalho Akiba,Timothy Evans,Giovanni Punzi,Da Yu Tou,Neville Harnew,Xiaofan Hu,Daniel James David Thompson,Stephan Escher,Fionn Caitlin Ros Bishop,Oleg Stenyakin,Marcin Chrzaszcz,Alexandre Boyer,Sune Jakobsen,Guido Haefeli,Sheldon Stone,Marek Idzik,Sergey Barsuk,Florin Maciuc,Marcel Materok,Davide Pinci,Miriam Lucio Martinez,Alice Biolchini,Sigrid Scherl,Yangheng Zheng,Daniel Patrick O'Hanlon,Daria Strekalina,Giacomo Graziani,Roland Waldi,Sergei Popov,Nikolay Nikitin,Sara Elizabeth Mitchell,Vladimir Chulikov,Louis Lenard Gerken,Michele Atzeni,Sascha Stahl,Giuliana Galati,Sebastian Neubert,Artur Ishteev,Christopher Jones,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,Burkhard Schmidt,Domenico Galli,Christoph Hasse,Thomas Ackernley,Erika De Lucia,Cheryl Pappenheimer,Ivan Belyaev,Aleksandr Petrov,Edward Brendan Shields,Stefano Petrucci,Hanna Malygina,Patricia Camargo Magalhaes,Alexander Leon Gilman,Abolhassan Jawahery,Hengne Li,Bhagyashree Pagare,Claudia Bertella,Luis Miguel Garcia Martin,Alessandra Gioventù,Paul Andre Günther,Alvaro Gomes,Dongliang Zhang,Matthew Kenzie,Holger Stevens,Desmond Mzamo Shangase,Denis Derkach,Malte Hecker,Angelo Carbone,Olivier Deschamps,Baasansuren Batsukh,Alexey Boldyrev,Katharina Müller,Philipp Roloff,Massimiliano Fiorini,Patrick Spradlin,Liupan An,Youhua Yang,Konstantin Belous,Rowina Caspary,Rudolf Oldeman,Frederic Blanc,Aleksandra Snoch,Asier Pereiro Castro,Shanzhen Chen,Zan Ren,Florian Reiss,Fabio Ferrari,Maksim Karpov,Ivan Shchemerov
Published Date
2022/1/25
A search for the decay B0→ φµ+ µ-is performed using proton-proton collisions at centre-of-mass energies of 7, 8, and 13TeV collected by the LHCb experiment and corresponding to an integrated luminosity of 9fb-1. No evidence for the B0→ 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 B0 s→ φµ+ µ-decay, is established. Using the measured B0 s→ φµ+ µ-branching fraction and assuming a phase-space model, the absolute branching fraction of the decay B0→ φµ+ µ-in the full q2 range is determined to be less than 3.2× 10-9 at a 90% credibility level.
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.
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.
Precise determination of the oscillation frequency
Authors
R Bernet,K Müller,P Owen,N Serra,O Steinkamp,LHCb Collaboration
Journal
Nature Physics
Published Date
2022
0 s) 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 B0 s→ D− s 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 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.
Olli Lupton FAQs
What is Olli Lupton's h-index at École Polytechnique Fédérale de Lausanne?
The h-index of Olli Lupton has been 95 since 2020 and 123 in total.
What are Olli Lupton's top articles?
The articles with the titles of
Compatibility and combination of world W-boson mass measurements
Test of Lepton Universality in Decays
Direct violation in charmless three-body decays of mesons
Observation of sizeable? contribution to? c1 (3872)? p+ p-J=? decays
The LHCb upgrade I
Measurement of CP asymmetries in and decays
Observation of sizeable contribution to decays
Nuclear Modification Factor of Neutral Pions in the Forward and Backward Regions in Collisions
...
are the top articles of Olli Lupton at École Polytechnique Fédérale de Lausanne.
What is Olli Lupton's total number of citations?
Olli Lupton has 57,921 citations in total.
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