Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state

A search for the nonresonant Λc+→pμ+μ- decay is performed using proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the LHCb experiment, corresponding to an integrated luminosity of 5.4 fb-1. No evidence for the decay is found in the dimuon invariant-mass regions where the...

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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:2024
País:España
Institución:Universitat Ramon Llull (URL)
Repositorio:DAU Arxiu Digital de la Universitat Ramon Llull
OAI Identifier:oai:dau.url.edu:20.500.14342/6052
Acceso en línea:http://hdl.handle.net/20.500.14342/6052
https://doi.org/10.1103/PhysRevD.110.052007
Access Level:acceso abierto
Palabra clave:Electroweak interaction
Baryons
Charm quark
Particle decays
Gran col·lisionador d'hadrons (França i Suïssa)
530.1
539
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spelling Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final stateCalvo Gomez, MiriamGolobardes Ribé, ElisabetVilasis-Cardona, XavierLHCb Collaboration - CERNElectroweak interactionBaryonsCharm quarkParticle decaysGran col·lisionador d'hadrons (França i Suïssa)530.1539A search for the nonresonant Λc+→pμ+μ- decay is performed using proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the LHCb experiment, corresponding to an integrated luminosity of 5.4 fb-1. No evidence for the decay is found in the dimuon invariant-mass regions where the expected contributions of resonances is subdominant. The upper limit on the branching fraction of the Λc+→pμ+μ- decay is determined to be 2.9(3.2)×10-8 at 90%(95%) confidence level. The branching fractions in the dimuon invariant-mass regions dominated by the η, ρ and ω resonances are also determined.info:eu-repo/semantics/publishedVersionAmerican Physical SocietyUniversitat Ramon Llull. La SalleCERN2026202620242024info:eu-repo/semantics/article13 p.application/pdfhttp://hdl.handle.net/20.500.14342/6052https://doi.org/10.1103/PhysRevD.110.052007reponame:DAU Arxiu Digital de la Universitat Ramon Llullinstname:Universitat Ramon Llull (URL)Physical Review D, 2024. Vol. 110, 052007© CERNAttribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:dau.url.edu:20.500.14342/60522026-06-21T06:40:37Z
dc.title.none.fl_str_mv Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state
title Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state
spellingShingle Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state
Calvo Gomez, Miriam
Electroweak interaction
Baryons
Charm quark
Particle decays
Gran col·lisionador d'hadrons (França i Suïssa)
530.1
539
title_short Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state
title_full Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state
title_fullStr Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state
title_full_unstemmed Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state
title_sort Search for the rare decay of charmed baryon Λc+ into the pμ+μ- final state
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
CERN
dc.subject.none.fl_str_mv Electroweak interaction
Baryons
Charm quark
Particle decays
Gran col·lisionador d'hadrons (França i Suïssa)
530.1
539
topic Electroweak interaction
Baryons
Charm quark
Particle decays
Gran col·lisionador d'hadrons (França i Suïssa)
530.1
539
description A search for the nonresonant Λc+→pμ+μ- decay is performed using proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the LHCb experiment, corresponding to an integrated luminosity of 5.4 fb-1. No evidence for the decay is found in the dimuon invariant-mass regions where the expected contributions of resonances is subdominant. The upper limit on the branching fraction of the Λc+→pμ+μ- decay is determined to be 2.9(3.2)×10-8 at 90%(95%) confidence level. The branching fractions in the dimuon invariant-mass regions dominated by the η, ρ and ω resonances are also determined.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.14342/6052
https://doi.org/10.1103/PhysRevD.110.052007
url http://hdl.handle.net/20.500.14342/6052
https://doi.org/10.1103/PhysRevD.110.052007
dc.relation.none.fl_str_mv Physical Review D, 2024. Vol. 110, 052007
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 13 p.
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 reponame:DAU Arxiu Digital de la Universitat Ramon Llull
instname:Universitat Ramon Llull (URL)
instname_str Universitat Ramon Llull (URL)
reponame_str DAU Arxiu Digital de la Universitat Ramon Llull
collection DAU Arxiu Digital de la Universitat Ramon Llull
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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