Measurement of CP violation in B-0 -> D+D- decays

The CP violation observables S and C in the decay channel B-0 -> D+D- are determined from a sample of proton-proton collisions at center-of-mass energies of 7 and 8 TeV, collected by the LHCb experiment and corresponding to an integrated luminosity of 3 fb(-1). The observable S describes CP viola...

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Detalles Bibliográficos
Autores: Graciani Díaz, Ricardo, Graugés Pous, Eugeni, Rives Molina, Vicente José, Picatoste Olloqui, Eduardo, Vilasis-Cardona, Xavier, LHCb Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/114425
Acceso en línea:https://hdl.handle.net/2445/114425
Access Level:acceso abierto
Palabra clave:Gran Col·lisionador d'Hadrons
Mesons (Física nuclear)
Violació CP (Física nuclear)
Large Hadron Collider (France and Switzerland)
Mesons (Nuclear physics)
CP violation (Nuclear physics)
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spelling Measurement of CP violation in B-0 -> D+D- decaysGraciani Díaz, RicardoGraugés Pous, EugeniRives Molina, Vicente JoséPicatoste Olloqui, EduardoVilasis-Cardona, XavierLHCb CollaborationGran Col·lisionador d'HadronsMesons (Física nuclear)Violació CP (Física nuclear)Large Hadron Collider (France and Switzerland)Mesons (Nuclear physics)CP violation (Nuclear physics)The CP violation observables S and C in the decay channel B-0 -> D+D- are determined from a sample of proton-proton collisions at center-of-mass energies of 7 and 8 TeV, collected by the LHCb experiment and corresponding to an integrated luminosity of 3 fb(-1). The observable S describes CP violation in the interference between mixing and the decay amplitude, and C parametrizes direct CP violation in the decay. The following values are obtained from a flavor-tagged, decay-time-dependent analysis: S = -0.54(-0.16)(+0.17) (stat) +/- 0.05(syst) ,C=0.26(-0.17)(+0.18) (stat) +/- 0.02(syst). These values provide evidence for CP violation at a significance level of 4.0 standard deviations. The phase shift due to higher-order standard model corrections is constrained to a small value of Delta phi = -0.16(-0.21)(+0.19) rad.American Physical Society2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/114425Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.117.261801Physical Review Letters, 2016, vol. 117, num. 26, p. 261801https://doi.org/10.1103/PhysRevLett.117.261801info:eu-repo/grantAgreement/EC/H2020/792684cc-by (c) CERN, 2016http://creativecommons.org/licenses/by/3.0/esinfo:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1144252026-05-27T06:46:51Z
dc.title.none.fl_str_mv Measurement of CP violation in B-0 -> D+D- decays
title Measurement of CP violation in B-0 -> D+D- decays
spellingShingle Measurement of CP violation in B-0 -> D+D- decays
Graciani Díaz, Ricardo
Gran Col·lisionador d'Hadrons
Mesons (Física nuclear)
Violació CP (Física nuclear)
Large Hadron Collider (France and Switzerland)
Mesons (Nuclear physics)
CP violation (Nuclear physics)
title_short Measurement of CP violation in B-0 -> D+D- decays
title_full Measurement of CP violation in B-0 -> D+D- decays
title_fullStr Measurement of CP violation in B-0 -> D+D- decays
title_full_unstemmed Measurement of CP violation in B-0 -> D+D- decays
title_sort Measurement of CP violation in B-0 -> D+D- decays
dc.creator.none.fl_str_mv Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Rives Molina, Vicente José
Picatoste Olloqui, Eduardo
Vilasis-Cardona, Xavier
LHCb Collaboration
author Graciani Díaz, Ricardo
author_facet Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Rives Molina, Vicente José
Picatoste Olloqui, Eduardo
Vilasis-Cardona, Xavier
LHCb Collaboration
author_role author
author2 Graugés Pous, Eugeni
Rives Molina, Vicente José
Picatoste Olloqui, Eduardo
Vilasis-Cardona, Xavier
LHCb Collaboration
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Gran Col·lisionador d'Hadrons
Mesons (Física nuclear)
Violació CP (Física nuclear)
Large Hadron Collider (France and Switzerland)
Mesons (Nuclear physics)
CP violation (Nuclear physics)
topic Gran Col·lisionador d'Hadrons
Mesons (Física nuclear)
Violació CP (Física nuclear)
Large Hadron Collider (France and Switzerland)
Mesons (Nuclear physics)
CP violation (Nuclear physics)
description The CP violation observables S and C in the decay channel B-0 -> D+D- are determined from a sample of proton-proton collisions at center-of-mass energies of 7 and 8 TeV, collected by the LHCb experiment and corresponding to an integrated luminosity of 3 fb(-1). The observable S describes CP violation in the interference between mixing and the decay amplitude, and C parametrizes direct CP violation in the decay. The following values are obtained from a flavor-tagged, decay-time-dependent analysis: S = -0.54(-0.16)(+0.17) (stat) +/- 0.05(syst) ,C=0.26(-0.17)(+0.18) (stat) +/- 0.02(syst). These values provide evidence for CP violation at a significance level of 4.0 standard deviations. The phase shift due to higher-order standard model corrections is constrained to a small value of Delta phi = -0.16(-0.21)(+0.19) rad.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/114425
url https://hdl.handle.net/2445/114425
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.117.261801
Physical Review Letters, 2016, vol. 117, num. 26, p. 261801
https://doi.org/10.1103/PhysRevLett.117.261801
info:eu-repo/grantAgreement/EC/H2020/792684
dc.rights.none.fl_str_mv cc-by (c) CERN, 2016
http://creativecommons.org/licenses/by/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) CERN, 2016
http://creativecommons.org/licenses/by/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.300724

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