Observation of Bc+ →Dh+h- Decays

Searches are presented for Bc+→Dh+h- decays, where D is a charmed meson and h± is a charged pion or kaon, using pp collision data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb-1. The decays Bc+→D+K+π-, Bc+→D∗+K+π-, and Bc+→Ds+K+K- are observed for the first time....

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Detalles Bibliográficos
Autores: Calvo Gomez, Miriam, Golobardes Ribé, Elisabet, Vilasis-Cardona, Xavier, LHCb Collaboration - CERN
Tipo de recurso: artículo
Fecha de publicación:2026
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:20.500.14342/5917
Acceso en línea:http://hdl.handle.net/20.500.14342/5917
https://doi.org/10.1103/fsj9-89jt
Access Level:acceso abierto
Palabra clave:Cabibbo-Kobayashi-Maskawa matrix
Electroweak interaction
Quark model
Bottom mesons
Charmed mesons
Hadron colliders
Gran col·lisionador d'hadrons (França i Suïssa)
53
539
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oai_identifier_str oai:recercat.cat:20.500.14342/5917
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spelling Observation of Bc+ →Dh+h- DecaysCalvo Gomez, MiriamGolobardes Ribé, ElisabetVilasis-Cardona, XavierLHCb Collaboration - CERNCabibbo-Kobayashi-Maskawa matrixElectroweak interactionQuark modelBottom mesonsCharmed mesonsHadron collidersGran col·lisionador d'hadrons (França i Suïssa)53539Searches are presented for Bc+→Dh+h- decays, where D is a charmed meson and h± is a charged pion or kaon, using pp collision data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb-1. The decays Bc+→D+K+π-, Bc+→D∗+K+π-, and Bc+→Ds+K+K- are observed for the first time. Their branching fractions, expressed as ratios relative to that of the Bc+→Bs0π+ decay, are determined to be R(Bc+→D+K+π-)=(1.96±0.23±0.08±0.10)×10-3, R(Bc+→D∗+K+π-)=(3.67±0.55±0.24±0.20)×10-3, R(Bc+→Ds+K+K-)=(1.61±0.35±0.13±0.07)×10-3, where the first uncertainty is statistical, the second is systematic, and the third is due to the limited precision on the D-meson branching fractions. The decay channels proceed primarily through excited K0 or D0 resonances or φ mesons, and open a new avenue for studies of charge-parity violation in beauty mesons.info:eu-repo/semantics/publishedVersionAmerican Physical SocietyUniversitat Ramon Llull. La Salle2026info:eu-repo/semantics/article12 p.http://hdl.handle.net/20.500.14342/5917https://doi.org/10.1103/fsj9-89jtreponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésPhysical review letters. 2026. 134© CERNAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:20.500.14342/59172026-05-29T05:05:01Z
dc.title.none.fl_str_mv Observation of Bc+ →Dh+h- Decays
title Observation of Bc+ →Dh+h- Decays
spellingShingle Observation of Bc+ →Dh+h- Decays
Calvo Gomez, Miriam
Cabibbo-Kobayashi-Maskawa matrix
Electroweak interaction
Quark model
Bottom mesons
Charmed mesons
Hadron colliders
Gran col·lisionador d'hadrons (França i Suïssa)
53
539
title_short Observation of Bc+ →Dh+h- Decays
title_full Observation of Bc+ →Dh+h- Decays
title_fullStr Observation of Bc+ →Dh+h- Decays
title_full_unstemmed Observation of Bc+ →Dh+h- Decays
title_sort Observation of Bc+ →Dh+h- Decays
dc.creator.none.fl_str_mv Calvo Gomez, Miriam
Golobardes Ribé, Elisabet
Vilasis-Cardona, Xavier
LHCb Collaboration - CERN
author Calvo Gomez, Miriam
author_facet Calvo Gomez, Miriam
Golobardes Ribé, Elisabet
Vilasis-Cardona, Xavier
LHCb Collaboration - CERN
author_role author
author2 Golobardes Ribé, Elisabet
Vilasis-Cardona, Xavier
LHCb Collaboration - CERN
author2_role author
author
author
dc.contributor.none.fl_str_mv Universitat Ramon Llull. La Salle
dc.subject.none.fl_str_mv Cabibbo-Kobayashi-Maskawa matrix
Electroweak interaction
Quark model
Bottom mesons
Charmed mesons
Hadron colliders
Gran col·lisionador d'hadrons (França i Suïssa)
53
539
topic Cabibbo-Kobayashi-Maskawa matrix
Electroweak interaction
Quark model
Bottom mesons
Charmed mesons
Hadron colliders
Gran col·lisionador d'hadrons (França i Suïssa)
53
539
description Searches are presented for Bc+→Dh+h- decays, where D is a charmed meson and h± is a charged pion or kaon, using pp collision data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb-1. The decays Bc+→D+K+π-, Bc+→D∗+K+π-, and Bc+→Ds+K+K- are observed for the first time. Their branching fractions, expressed as ratios relative to that of the Bc+→Bs0π+ decay, are determined to be R(Bc+→D+K+π-)=(1.96±0.23±0.08±0.10)×10-3, R(Bc+→D∗+K+π-)=(3.67±0.55±0.24±0.20)×10-3, R(Bc+→Ds+K+K-)=(1.61±0.35±0.13±0.07)×10-3, where the first uncertainty is statistical, the second is systematic, and the third is due to the limited precision on the D-meson branching fractions. The decay channels proceed primarily through excited K0 or D0 resonances or φ mesons, and open a new avenue for studies of charge-parity violation in beauty mesons.
publishDate 2026
dc.date.none.fl_str_mv 2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.14342/5917
https://doi.org/10.1103/fsj9-89jt
url http://hdl.handle.net/20.500.14342/5917
https://doi.org/10.1103/fsj9-89jt
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Physical review letters. 2026. 134
dc.rights.none.fl_str_mv © CERN
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © CERN
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 12 p.
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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