Measurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons

dc.contributor.authorAlfonso Albero, Alejandro
dc.contributor.authorComerma Montells, Albert
dc.contributor.authorGarcia Moreno, Paula
dc.contributor.authorGarrido Beltrán, Lluís
dc.contributor.authorGironella Gironell, Pere
dc.contributor.authorGomez Fernandez, Sergio
dc.contributor.authorGraugés Pous, Eugeni
dc.contributor.authorLobo Salvia, Aniol
dc.contributor.authorLópez Huertas, Albert
dc.contributor.authorManera Escalero, Rafel
dc.contributor.authorMarin Benito, Carla
dc.contributor.authorMauricio Ferre, Joan
dc.contributor.authorVazquez Gomez, Ricardo
dc.contributor.authorLHCb Collaboration
dc.date.accessioned2025-06-06T16:46:32Z
dc.date.available2025-06-06T16:46:32Z
dc.date.issued2023
dc.date.updated2025-06-06T16:46:32Z
dc.description.abstractThe CP asymmetries of seven B− decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb−1 of proton-proton collisions collected by the LHCb experiment. Decays involving a D∗0 or D∗− s meson are analysed by reconstructing only the D0 or D− s decay products. This paper presents the frst measurement of ACP (B− → D∗− s D0 ) and ACP (B− → D− s D∗0 ), and the most precise measurement of the other fve CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured.
dc.format.extent30 p.
dc.format.mimetypeapplication/pdf
dc.identifier.idgrec757064
dc.identifier.issn1126-6708
dc.identifier.urihttps://hdl.handle.net/2445/221431
dc.language.isoeng
dc.publisherSpringer Verlag
dc.relation.isformatofReproducció del document publicat a: https://doi.org/10.1007/JHEP09(2023)202
dc.relation.ispartofJournal of High Energy Physics, 2023, vol. 2023, num.202
dc.relation.urihttps://doi.org/10.1007/JHEP09(2023)202
dc.rightscc-by (c) Alfonso Albero, A. et al., 2023
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceArticles publicats en revistes (Física Quàntica i Astrofísica)
dc.subject.classificationFísica de partícules
dc.subject.classificationHadrons
dc.subject.otherParticle physics
dc.subject.otherHadrons
dc.titleMeasurement of CP asymmetries and branching fraction ratios of B− decays to two charm mesons
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion

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