Alberto Lusiani

Scuola Normale Superiore di Pisa

H-index: 169

Europe-Italy

About Alberto Lusiani

Alberto Lusiani, With an exceptional h-index of 169 and a recent h-index of 99 (since 2020), a distinguished researcher at Scuola Normale Superiore di Pisa, specializes in the field of Physics.

His recent articles reflect a diverse array of research interests and contributions to the field:

A search for rare B→ Dμ+ μ− decays

Measurement of production in collisions at TeV at LHCb

arXiv: Detailed Report on the Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm

Detailed Report on the Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm

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

Measurement of the Branching Fractions B (B0→ p\overline {p} p\overline {p}) and B (Bs0→ p\overline {p} p\overline {p})

Search for decays at LHCb

Observation of a Resonant Structure near the Threshold in the Decay

Alberto Lusiani Information

University	Scuola Normale Superiore di Pisa
Position	researcher Italy
Citations(all)	158962
Citations(since 2020)	68532
Cited By	116088
hIndex(all)	169
hIndex(since 2020)	99
i10Index(all)	1031
i10Index(since 2020)	600
Email	Access Email
University Profile Page	Scuola Normale Superiore di Pisa

Alberto Lusiani Skills & Research Interests

Physics

Top articles of Alberto Lusiani

A search for rare B→ Dμ+ μ− decays

Authors

Roel 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,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,V Bocharnikov,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse,M Cattaneo

Journal

Journal of High Energy Physics

Published Date

2024/2

A search for rare B→ Dμ+ μ− decays is performed using proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb− 1. No significant signals are observed in the non-resonant μ+ μ− modes, and upper limits of,, and are set at the 95% confidence level, where f c and f u are the fragmentation fractions of a B meson with a c and u quark respectively in proton-proton collisions. Each result is either the first such measurement or an improvement by three orders of magnitude on an existing limit. Separate upper limits are calculated when the muon pair originates from a J/ψ→ μ+ μ− decay. The branching fraction of multiplied by the fragmentation-fraction ratio is measured to be

Measurement of production in collisions at TeV at LHCb

Authors

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

Journal

Physical Review C

Published Date

2024/4/1

A study of prompt Ξ c+ production in proton-lead collisions is performed with the LHCb experiment at a center-of-mass energy per nucleon pair of 8.16 TeV in 2016 in p Pb and Pb p collisions with an estimated integrated luminosity of approximately 12.5 and 17.4 nb− 1, respectively. The Ξ c+ production cross section, as well as the Ξ c+ to Λ c+ production cross-section ratio, are measured as a function of the transverse momentum and rapidity and compared to the latest theory predictions. The forward-backward asymmetry is also measured as a function of the Ξ c+ transverse momentum. The results provide strong constraints on theoretical calculation and are a unique input for hadronization studies in different collision systems.

arXiv: Detailed Report on the Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm

Authors

DP Aguillard,G Lukicov,A Keshavarzi,MD Galati,E Barzi,VN Duginov,JP Miller,M Yucel,R Fatemi,J Esquivel,Z Omarov,A Schreckenberger,S Corrodi,D Kawall,AT Fienberg,S Chappa,J Bono,VA Baranov,H Nguyen,G Sweetmore,TE Chupp,S Baeßler,H Friedsam,RM Carey,Z Lu,T Halewood-Leagas,S Braun,S Park,Y Zeng,C Schlesier,E Valetov,C Claessens,S Di Falco,D Cauz,Y Hu,Y Wu,T Teubner,KR Labe,DL Rubin,M Lancaster,B Mitra,JD Crnkovic,D Allspach,G Cantatore,JP Morgan,A Chapelain,Y Oksuzian,NA Kuchinskiy,G Venanzoni,B Li,A Anisenkov,R Hong,DA Sweigart,A Edmonds,M Fertl,G Di Sciascio,M Kargiantoulakis,D Počanić,P Kammel,VA Krylov,A Garcia,RN Pilato,A Fioretti,B Kiburg,I Gaines,L Li,D Vasilkova,AE Tewsley-Booth,Z Khechadoorian,N Kinnaird,GM Piacentino,KS Khaw,J Price,M Bhattacharya,NS Froemming,L Kelton,BL Roberts,M Kiburg,KW Hong,L Bailey,M Iacovacci,D Still,C Gabbanini,O Kim,CC Polly,A Lorente Campos,M Sorbara,M Eads,DW Hertzog,J Kaspar,D Flay,M Cheng,JK Ng,R Chislett,M Karuza,S Charity,R Chakraborty,NV Khomutov,W Turner,D Stratakis,S Miozzi,SB Foster,ME Convery,S Ganguly,T Gorringe,J Mott,S Ramachandran,E Kraegeloh,S Donati,A Driutti,E Ramberg,D Hampai,T Bowcock,B Drendel,L Cotrozzi,B Quinn,R Osofsky,S Lee,M Incagli,L Santi,AL Lyon,F Gray,S Grant,KT Pitts,T Walton,HP Binney,D Stöckinger,S Dabagov,MJ Syphers,J LaBounty,M Berz,G Hesketh,T Barrett,A Lusiani,F Bedeschi,A Hibbert,V Tishchenko,K Makino,W Gohn,E Barlas-Yucel,M Sakurai,J Grange,C Stoughton,DA Tarazona,C Ferrari,B MacCoy,B Yu,Z Chu,LK Gibbons,E Bottalico

Published Date

2024/2/23

We present details on a new measurement of the muon magnetic anomaly, . The result is based on positive muon data taken at Fermilab's Muon Campus during the 2019 and 2020 accelerator runs. The measurement uses GeV polarized muons stored in a -m-radius storage ring with a T uniform magnetic field. The value of is determined from the measured difference between the muon spin precession frequency and its cyclotron frequency. This difference is normalized to the strength of the magnetic field, measured using Nuclear Magnetic Resonance (NMR). The ratio is then corrected for small contributions from beam motion, beam dispersion, and transient magnetic fields. We measure (0.21 ppm). This is the world's most precise measurement of this quantity and represents a factor of improvement over our previous result based on the 2018 dataset. In combination, the two datasets yield (0.20 ppm). Combining this with the measurements from Brookhaven National Laboratory for both positive and negative muons, the new world average is (exp) (0.19 ppm).

Detailed Report on the Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm

Authors

DP Aguillard,T Albahri,D Allspach,A Anisenkov,K Badgley,S Baeßler,I Bailey,L Bailey,VA Baranov,E Barlas-Yucel,T Barrett,E Barzi,F Bedeschi,M Berz,M Bhattacharya,HP Binney,P Bloom,J Bono,E Bottalico,T Bowcock,S Braun,M Bressler,G Cantatore,RM Carey,BCK Casey,D Cauz,R Chakraborty,A Chapelain,S Chappa,S Charity,C Chen,M Cheng,R Chislett,Z Chu,TE Chupp,C Claessens,ME Convery,S Corrodi,L Cotrozzi,JD Crnkovic,S Dabagov,PT Debevec,S Di Falco,G Di Sciascio,S Donati,B Drendel,A Driutti,VN Duginov,M Eads,A Edmonds,J Esquivel,M Farooq,R Fatemi,C Ferrari,M Fertl,AT Fienberg,A Fioretti,D Flay,SB Foster,H Friedsam,NS Froemming,C Gabbanini,I Gaines,MD Galati,S Ganguly,A Garcia,J George,LK Gibbons,A Gioiosa,KL Giovanetti,P Girotti,W Gohn,L Goodenough,T Gorringe,J Grange,S Grant,F Gray,S Haciomeroglu,T Halewood-Leagas,D Hampai,F Han,J Hempstead,DW Hertzog,G Hesketh,E Hess,A Hibbert,Z Hodge,KW Hong,R Hong,T Hu,Y Hu,M Iacovacci,M Incagli,P Kammel,M Kargiantoulakis,M Karuza,J Kaspar,D Kawall,L Kelton,A Keshavarzi,DS Kessler,KS Khaw,Z Khechadoorian,NV Khomutov,B Kiburg,M Kiburg,O Kim,N Kinnaird,E Kraegeloh,VA Krylov,NA Kuchinskiy,KR Labe,J LaBounty,M Lancaster,S Lee,B Li,D Li,L Li,I Logashenko,A Lorente Campos,Z Lu,A Lucà,G Lukicov,A Lusiani,AL Lyon,B MacCoy,R Madrak,K Makino,S Mastroianni,JP Miller,S Miozzi,B Mitra,JP Morgan,WM Morse,J Mott,A Nath,JK Ng,H Nguyen,Y Oksuzian,Z Omarov,R Osofsky,S Park,G Pauletta,GM Piacentino,RN Pilato,KT Pitts,B Plaster,D Počanić,N Pohlman,CC Polly

Journal

arXiv preprint arXiv:2402.15410

Published Date

2024/2/23

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

Authors

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

Journal

Physical Review D

Published Date

2023/9/18

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

Measurement of the Branching Fractions B (B0→ p\overline {p} p\overline {p}) and B (Bs0→ p\overline {p} p\overline {p})

Authors

R Aaij,A Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,P Adlarson,H Afsharnia,C Agapopoulou,C 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,J 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,J Back,A Bailly-reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,R Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,J Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,I Bediaga,A Beiter,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,H Bernstein,C Bertella,A Bertolin,C Betancourt,F Betti,I Bezshyiko,S Bhasin,J Bhom,L Bian,M Bieker,N Biesuz,S Bifani,P Billoir,A Biolchini,M Birch,F Bishop,A Bitadze,A Bizzeti,M Blago,T Blake,F Blanc,J Blank,S Blusk,D Bobulska,J Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,C Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,J Borsuk,S Bouchiba,T Bowcock,A Boyer,C Bozzi,M Bradley,S Braun,A Brea Rodriguez,J Breckenridge,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,A Burke,C Burr,A Bursche,A Butkevich,J Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,R Calladine,M Calvi,M Calvo Gomez,P Campana,D Campora Perez,A Campoverde Quezada,S Capelli,L Capriotti,A Carbone,G Carboni,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal

Journal

Physical Review Letters

Published Date

2023/8/29

Searches for the rare hadronic decays B 0→ pppp and B 0 s→ pppp are performed using proton-proton collision data recorded by the LHCb experiment and corresponding to an integrated luminosity of 9 fb− 1. Significances of 9.3 σ and 4.0 σ, including statistical and systematic uncertainties, are obtained for the B 0→ pppp and B 0 s→ pppp signals, respectively. The branching fractions are measured relative to the topologically similar normalization decays B 0→ J= ψð→ ppÞK Ã0ð→ K þπ− Þ and B 0 s→ J= ψð→ ppÞ× ϕð→ K þ K− Þ. The branching fractions are measured to be BðB 0→ ppppÞ¼ð2. 2 Æ 0.4 Æ 0.1 Æ 0.1 Þ× 10− 8 and BðB 0 s→ ppppÞ¼ð2. 3 Æ 1.0 Æ 0.2 Æ 0.1 Þ× 10− 8. In these measurements, the first uncertainty is statistical, the second is systematic, and the third one is due to the external branching fraction of the normalization channel.

Search for decays at LHCb

Authors

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

Journal

Physical Review D

Published Date

2023/8/3

A search for K S (L) 0→ μ+ μ− μ+ μ− decays is performed using proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 5.1 fb− 1. No evidence for signal is found. The 90% confidence level upper limits are the first set for both decays and are B (K S 0→ μ+ μ− μ+ μ−)< 5.1× 10− 12 and B (K L 0→ μ+ μ− μ+ μ−)< 2.3× 10− 9.

Observation of a Resonant Structure near the Threshold in the Decay

Authors

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

Journal

Physical review letters

Published Date

2023/8/14

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

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.

Publisher Erratum: A study of violation in the decays () and

Authors

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

Journal

The European Physical Journal C

Published Date

2023/7/28

Publisher Erratum: A study of violation in the decays${{B}^\pm}\rightarrow [{{K}^+}{{K}^-}{{\uppi}^+}{{\uppi}^-}] _ {D} h^{\pm}$() and${{B}^\pm}\rightarrow [{{\uppi}^+}{{\uppi}^-}{{\uppi}^+}{{\uppi}^-}] _ {D} h^{\pm}$

First observation of a doubly charged tetraquark and its neutral partner

Authors

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

Journal

Physical review letters

Published Date

2023/7/27

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

Measurement of using the decay mode

Authors

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

Journal

The European Physical Journal C

Published Date

2023/7/17

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

Open charm production and asymmetry in pNe collisions at $$\sqrt {s_ {\scriptscriptstyle {\textrm {NN}}}}= 68.5$$$$\,\text {Ge\hspace {-1.00006 pt} V} $$

Authors

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

Journal

The European Physical Journal C

Published Date

2023/6

A measurement of meson production by the LHCb experiment in its fixed-target configuration is presented. The production of mesons is studied with a beam of 2.5$\,\text {Te\hspace {-1.00006 pt} V}$ protons colliding on a gaseous neon target at rest, corresponding to a nucleon–nucleon centre-of-mass energy of$\sqrt {s_ {\scriptscriptstyle\text {NN}}}= 68.5\,\,\text {Ge\hspace {-1.00006 pt} V}$. The sum of the and production cross-section in collisions in the centre-of-mass rapidity range is found to be$\sigma _ {D^{0}}^{y^\star\in [-2.29, 0]}= 48.2\pm 0.3\pm 4.5\,\upmu\text {b}/\text {nucleon}$ where the first uncertainty is statistical and the second is systematic. The production asymmetry is also evaluated and suggests a trend towards negative values at large negative. The considered models do not account precisely for all the features observed in the LHCb data, but theoretical predictions …

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

Authors

Roel Aaij,Shinichi Okamura,Matthew John Bradley,Gregory Ciezarek,Maciej Wojciech Dudek,Paula Collins,Roberto Piandani,Stanislav Luchuk,Nico Kleijne,Wenbin Qian,Julio Novoa Fernandez,Simone Meloni,Aodhan Tomas Burke,Tomasz Szumlak,Jennifer Clare Smallwood,Serena Maccolini,Andrzej Kupsc,Marcel Merk,Paula Garcia Moreno,Alexander Bitadze,Domenico Galli,Marie-Noelle Minard,Daniel Berninghoff,Giuseppe Ciullo,Pavel Krokovny,Gianfranco Morello,Andrea Merli,Ivan Polyakov,Carmen Giugliano,Pierfrancesco Cifra,Pei-Rong Li,Leonardo Santoro,Guillaume Pietrzyk,Paul Nathaniel Swallow,Giorgia Tonani,Leonid Kravchuk,Tatiana Ovsiannikova,Shuangli Yang,Menglin Xu,Cheuk Ping Wong,John Gordon Smeaton,Veronika Chobanova,Thomas Kirn,Gaya Benane,Boan Shi,Shulei Zhang,Luke George Scantlebury Smead,Niels Tuning,Mauro Piccini,Sebastian Bachmann,Marie Bachmayer,Zhenzi Wang,Mindaugas Sarpis,Carina Trippl,Timothy Evans,Giovanni Punzi,Da Yu Tou,Davide Nicotra,Neville Harnew,Xiaofan Hu,Izabela Juszczak,Daniel James David Thompson,Stephan Escher,Fionn Caitlin Ros Bishop,Oleg Stenyakin,Marcin Chrzaszcz,Jonathan Edward Davies,Sune Jakobsen,Marius Maehlum Halvorsen,Guido Haefeli,Sanqiang Qu,Christoph Langenbruch,Sergey Barsuk,Florin Maciuc,Marcel Materok,Davide Pinci,Miriam Lucio Martinez,Chenjia Zhang,Alice Biolchini,Hongjie Mu,Sigrid Scherl,Yangheng Zheng,Alexandra Paige Rollings,Daria Strekalina,Giacomo Graziani,Nikolay Nikitin,Sara Elizabeth Mitchell,Vladimir Chulikov,Louis Lenard Gerken,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,Burkhard Schmidt,Konstantin Gizdov,Christoph Hasse,Thomas Ackernley,Patrik Harri Adlarson,Erika De Lucia,Shuchong Ding,Ivan Belyaev,Edward Brendan Shields,Stefano Petrucci,Ming Zeng,Xueting Yang,Monica Pepe Altarelli,Jie Wu,Alexander Leon Gilman,Abolhassan Jawahery,Hengne Li,Bhagyashree Pagare,Claudia Bertella,Luis Miguel Garcia Martin,Alessandra Gioventù,Paul Andre Günther,Sophie Katharina Kretzschmar,Alvaro Gomes,Joshua Ethan Horswill,Matthew Kenzie,Holger Stevens,Desmond Mzamo Shangase,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

Published Date

2023/5/26

The mass difference between the Ω-b and Ξ-b baryons is measured using protonproton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb-1, and is found to be m (Ω-b)− m (Ξ-b)= 248.54±0.51 (stat)±0.38 (syst) MeV/c2.

Measurement of the positive muon anomalous magnetic moment to 0.20 ppm

Authors

DP Aguillard,T Albahri,D Allspach,A Anisenkov,K Badgley,S Baeßler,I Bailey,L Bailey,VA Baranov,E Barlas-Yucel,T Barrett,E Barzi,F Bedeschi,M Berz,M Bhattacharya,HP Binney,P Bloom,J Bono,E Bottalico,T Bowcock,S Braun,M Bressler,G Cantatore,RM Carey,BCK Casey,D Cauz,R Chakraborty,A Chapelain,S Chappa,S Charity,C Chen,M Cheng,R Chislett,Z Chu,TE Chupp,C Claessens,ME Convery,S Corrodi,L Cotrozzi,JD Crnkovic,S Dabagov,PT Debevec,S Di Falco,G Di Sciascio,B Drendel,A Driutti,VN Duginov,M Eads,A Edmonds,J Esquivel,M Farooq,R Fatemi,C Ferrari,M Fertl,AT Fienberg,A Fioretti,D Flay,SB Foster,H Friedsam,NS Froemming,C Gabbanini,I Gaines,MD Galati,S Ganguly,A Garcia,J George,LK Gibbons,A Gioiosa,KL Giovanetti,P Girotti,W Gohn,L Goodenough,T Gorringe,J Grange,S Grant,F Gray,S Haciomeroglu,T Halewood-Leagas,D Hampai,F Han,J Hempstead,DW Hertzog,G Hesketh,E Hess,A Hibbert,Z Hodge,KW Hong,R Hong,T Hu,Y Hu,M Iacovacci,M Incagli,P Kammel,M Kargiantoulakis,M Karuza,J Kaspar,D Kawall,L Kelton,A Keshavarzi,DS Kessler,KS Khaw,Z Khechadoorian,NV Khomutov,B Kiburg,M Kiburg,O Kim,N Kinnaird,E Kraegeloh,VA Krylov,NA Kuchinskiy,KR Labe,J LaBounty,M Lancaster,S Lee,B Li,D Li,L Li,I Logashenko,A Lorente Campos,Z Lu,A Lucà,G Lukicov,A Lusiani,AL Lyon,B MacCoy,R Madrak,K Makino,S Mastroianni,JP Miller,S Miozzi,B Mitra,JP Morgan,WM Morse,J Mott,A Nath,JK Ng,H Nguyen,Y Oksuzian,Z Omarov,R Osofsky,S Park,G Pauletta,GM Piacentino,RN Pilato,KT Pitts,B Plaster,D Počanić,N Pohlman,CC Polly,J Price

Journal

Physical Review Letters

Published Date

2023/10/17

We present a new measurement of the positive muon magnetic anomaly, a μ≡(g μ− 2)/2, from the Fermilab Muon g− 2 Experiment using data collected in 2019 and 2020. We have analyzed more than 4 times the number of positrons from muon decay than in our previous result from 2018 data. The systematic error is reduced by more than a factor of 2 due to better running conditions, a more stable beam, and improved knowledge of the magnetic field weighted by the muon distribution, ω p′, and of the anomalous precession frequency corrected for beam dynamics effects, ω a. From the ratio ω a/ω p′, together with precisely determined external parameters, we determine a μ= 116 592 057 (25)× 10− 11 (0.21 ppm). Combining this result with our previous result from the 2018 data, we obtain a μ (FNAL)= 116 592 055 (24)× 10− 11 (0.20 ppm). The new experimental world average is a μ (exp)= 116 592 059 (22)× 10 …

polarimetry using the dominant hadronic mode

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,P Billoir,A Biolchini,M Birch,FCR Bishop,A Bitadze,A Bizzeti,MP Blago,T Blake,F Blanc,JE Blank,S Blusk,D Bobulska,JA Boelhauve,O Boente Garcia,T Boettcher,A Boldyrev,CS Bolognani,R Bolzonella,N Bondar,F Borgato,S Borghi,M Borsato,JT Borsuk,SA Bouchiba,TJV Bowcock,A Boyer,C Bozzi,MJ Bradley,S Braun,A Brea Rodriguez,J Brodzicka,A Brossa Gonzalo,J Brown,D Brundu,A Buonaura,L Buonincontri,AT Burke,C Burr,A Bursche,A Butkevich,JS Butter,J Buytaert,W Byczynski,S Cadeddu,H Cai,R Calabrese,L Calefice,S Cali,M Calvi,M Calvo Gomez,P Campana,DH Campora Perez,AF Campoverde Quezada,S Capelli,L Capriotti,A Carbone,R Cardinale,A Cardini,P Carniti,L Carus,A Casais Vidal,R Caspary,G Casse,M Cattaneo,G Cavallero

Journal

Journal of High Energy Physics

Published Date

2023/7

The polarimeter vector field for multibody decays of a spin-half baryon is introduced as a generalisation of the baryon asymmetry parameters. Using a recent amplitude analysis of the→ pK− π+ decay performed at the LHCb experiment, we compute the distribution of the kinematic-dependent polarimeter vector for this process in the space of Mandelstam variables to express the polarised decay rate in a model-agnostic form. The obtained representation can facilitate polarisation measurements of the baryon and eases inclusion of the→ pK− π+ decay mode in hadronic amplitude analyses.

Measurement of the Z boson production cross-section in proton-lead collisions at = 8.16 TeV

Authors

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

Journal

Journal of High Energy Physics

Published Date

2024/2

The first measurement of the Z boson production cross-section at centre-of-mass energy= 5. 02 TeV in the forward region is reported, using pp collision data collected by the LHCb experiment in year 2017, corresponding to an integrated luminosity of 100±2 pb− 1. The production cross-section is measured for final-state muons in the pseudorapidity range 2. 0< η< 4. 5 with transverse momentum p T> 20 GeV/c. The integrated cross-section is determined to be

Search for mesogenesis at BaBar

Authors

JP Lees,V Poireau,V Tisserand,E Grauges,A Palano,G Eigen,DN Brown,Yu G Kolomensky,M Fritsch,H Koch,R Cheaib,C Hearty,TS Mattison,JA McKenna,RY So,VE Blinov,AR Buzykaev,VP Druzhinin,EA Kozyrev,EA Kravchenko,SI Serednyakov,Yu I Skovpen,EP Solodov,K Yu Todyshev,AJ Lankford,B Dey,JW Gary,O Long,AM Eisner,WS Lockman,W Panduro Vazquez,DS Chao,CH Cheng,B Echenard,KT Flood,DG Hitlin,Y Li,DX Lin,S Middleton,TS Miyashita,P Ongmongkolkul,J Oyang,FC Porter,M Röhrken,BT Meadows,MD Sokoloff,JG Smith,SR Wagner,D Bernard,M Verderi,D Bettoni,C Bozzi,R Calabrese,G Cibinetto,E Fioravanti,I Garzia,E Luppi,V Santoro,A Calcaterra,R De Sangro,G Finocchiaro,S Martellotti,P Patteri,IM Peruzzi,M Piccolo,M Rotondo,A Zallo,S Passaggio,C Patrignani,BJ Shuve,HM Lacker,B Bhuyan,U Mallik,C Chen,J Cochran,S Prell,AV Gritsan,N Arnaud,M Davier,F Le Diberder,AM Lutz,G Wormser,DJ Lange,DM Wright,JP Coleman,DE Hutchcroft,DJ Payne,C Touramanis,AJ Bevan,F Di Lodovico,G Cowan,Sw Banerjee,CL Davis,AG Denig,W Gradl,K Griessinger,A Hafner,KR Schubert,RJ Barlow,GD Lafferty,R Cenci,A Jawahery,DA Roberts,R Cowan,SH Robertson,RM Seddon,N Neri,F Palombo,L Cremaldi,R Godang,DJ Summers,G De Nardo,C Sciacca,CP Jessop,JM LoSecco,K Honscheid,A Gaz,M Margoni,G Simi,F Simonetto,R Stroili,S Akar,E Ben-Haim,M Bomben,GR Bonneaud,G Calderini,J Chauveau,G Marchiori,J Ocariz,M Biasini,E Manoni,A Rossi,G Batignani,S Bettarini,M Carpinelli,G Casarosa,M Chrzaszcz,F Forti,MA Giorgi,A Lusiani,B Oberhof,E Paoloni,M Rama,G Rizzo,JJ Walsh,L Zani,AJS Smith,F Anulli,R Faccini,F Ferrarotto

Journal

Physical Review D

Published Date

2023/5/3

A new mechanism has been proposed to simultaneously explain the presence of dark matter and the matter-antimatter asymmetry in the Universe. This scenario predicts exotic B-meson decays into a baryon and a dark-sector antibaryon (ψ D) with branching fractions accessible at B factories. We present a search for B→ Λ ψ D decays using data collected by the BABAR experiment at SLAC. This reaction is identified by fully reconstructing the accompanying B meson and requiring the presence of a single Λ baryon in the remaining particles. No significant signal is observed, and bounds on the B→ Λ ψ D branching fraction are derived in the range 0.13–5.2× 10− 5 for 1.0< m ψ D< 4.2 GeV/c 2. These results set strong constraints on the parameter space allowed by the theory.

Measurement of the ratios of branching fractions and

Authors

LHCb Collaboration

Journal

arXiv preprint arXiv:2302.02886

Published Date

2023/2/6

The ratios of branching fractions and are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode . The measured values are and , where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is . Results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the Standard Model.

First observation of the B⁺→ Ds⁺ Ds⁻ K⁺ decay

Authors

ASW Abdelmotteleb,C Abellan Beteta,F Abudinén,T Ackernley,B Adeva,M Adinolfi,H Afsharnia,C Agapopoulou,CA Aidala,S Aiola,Z Ajaltouni,S Akar,K Akiba,J Albrecht,F Alessio,M Alexander,A Alfonso Albero,Z Aliouche,P Alvarez Cartelle,R Amalric,S Amato,JL Amey,Y Amhis,L An,L Anderlini,M Andersson,A Andreianov,M Andreotti,D Andreou,D Ao,F Archilli,A Artamonov,M Artuso,E Aslanides,M Atzeni,B Audurier,S Bachmann,M Bachmayer,JJ Back,A Bailly-reyre,P Baladron Rodriguez,V Balagura,W Baldini,J Baptista de Souza Leite,M Barbetti,RJ Barlow,S Barsuk,W Barter,M Bartolini,F Baryshnikov,JM Basels,G Bassi,B Batsukh,A Battig,A Bay,A Beck,M Becker,F Bedeschi,IB Bediaga,A Beiter,V Belavin,S Belin,V Bellee,K Belous,I Belov,I Belyaev,G 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,G Casse

Journal

PHYSICAL REVIEW D

Published Date

2023

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

See List of Professors in Alberto Lusiani University(Scuola Normale Superiore di Pisa)