First observation of B0s → J/ψ f0(980) decays

Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decayB0s→J/ψf0(980) is observed. ThisCP eigenstate mode could be used to measure mixing-induced CP violation in theB0ssystem. Using a fit to theπ+π−mass spectrum with interfering...

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Autores: Calvo Gómez, Míriam, Camboni, Alessandro, Vilasís Cardona, Xavier, LHCb Collaboration - CERN
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2011
País:España
Recursos: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:20.500.14342/3381
Acesso em linha:http://hdl.handle.net/20.500.14342/3381
https://doi.org/10.1016/j.physletb.2011.03.006
Access Level:acceso abierto
Palavra-chave:Gran col·lisionador d'hadrons (França i Suïssa)
Protons
Partícules (Física nuclear)
Col·lisions (Física nuclear)
53
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spelling First observation of B0s → J/ψ f0(980) decaysCalvo Gómez, MíriamCamboni, AlessandroVilasís Cardona, XavierLHCb Collaboration - CERNGran col·lisionador d'hadrons (França i Suïssa)ProtonsPartícules (Física nuclear)Col·lisions (Física nuclear)53Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decayB0s→J/ψf0(980) is observed. ThisCP eigenstate mode could be used to measure mixing-induced CP violation in theB0ssystem. Using a fit to theπ+π−mass spectrum with interfering resonances givesRf0/φ≡Γ(B0s→J/ψf0, f0→π+π−)Γ(B0s→J/ψφ, φ→K+K−)= 0.252+0.046+0.027−0.032−0.033. In the interval±90 MeV around980 MeV, corresponding to approximately two fullf0widths we also findR′≡Γ(B0s→J/ψπ+π−,|m(π+π−)−980 MeV|<90 MeV)Γ(B0s→J/ψφ, φ→K+K−)= 0.162±0.022±0.016, where in both casesthe uncertainties are statistical and systematic, respectivelyElsevierUniversitat Ramon Llull. La SalleCERN2011info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion8 p.http://hdl.handle.net/20.500.14342/3381https://doi.org/10.1016/j.physletb.2011.03.006reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésPhysics Letters B, Vol. 698, No 2 (Abril 2011)Attribution-NonCommercial-NoDerivatives 4.0 International© CERNhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:20.500.14342/33812026-05-29T05:05:01Z
dc.title.none.fl_str_mv First observation of B0s → J/ψ f0(980) decays
title First observation of B0s → J/ψ f0(980) decays
spellingShingle First observation of B0s → J/ψ f0(980) decays
Calvo Gómez, Míriam
Gran col·lisionador d'hadrons (França i Suïssa)
Protons
Partícules (Física nuclear)
Col·lisions (Física nuclear)
53
title_short First observation of B0s → J/ψ f0(980) decays
title_full First observation of B0s → J/ψ f0(980) decays
title_fullStr First observation of B0s → J/ψ f0(980) decays
title_full_unstemmed First observation of B0s → J/ψ f0(980) decays
title_sort First observation of B0s → J/ψ f0(980) decays
dc.creator.none.fl_str_mv Calvo Gómez, Míriam
Camboni, Alessandro
Vilasís Cardona, Xavier
LHCb Collaboration - CERN
author Calvo Gómez, Míriam
author_facet Calvo Gómez, Míriam
Camboni, Alessandro
Vilasís Cardona, Xavier
LHCb Collaboration - CERN
author_role author
author2 Camboni, Alessandro
Vilasís 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 Gran col·lisionador d'hadrons (França i Suïssa)
Protons
Partícules (Física nuclear)
Col·lisions (Física nuclear)
53
topic Gran col·lisionador d'hadrons (França i Suïssa)
Protons
Partícules (Física nuclear)
Col·lisions (Física nuclear)
53
description Using data collected with the LHCb detector in proton-proton collisions at a centre-of-mass energy of 7 TeV, the hadronic decayB0s→J/ψf0(980) is observed. ThisCP eigenstate mode could be used to measure mixing-induced CP violation in theB0ssystem. Using a fit to theπ+π−mass spectrum with interfering resonances givesRf0/φ≡Γ(B0s→J/ψf0, f0→π+π−)Γ(B0s→J/ψφ, φ→K+K−)= 0.252+0.046+0.027−0.032−0.033. In the interval±90 MeV around980 MeV, corresponding to approximately two fullf0widths we also findR′≡Γ(B0s→J/ψπ+π−,|m(π+π−)−980 MeV|<90 MeV)Γ(B0s→J/ψφ, φ→K+K−)= 0.162±0.022±0.016, where in both casesthe uncertainties are statistical and systematic, respectively
publishDate 2011
dc.date.none.fl_str_mv 2011
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 http://hdl.handle.net/20.500.14342/3381
https://doi.org/10.1016/j.physletb.2011.03.006
url http://hdl.handle.net/20.500.14342/3381
https://doi.org/10.1016/j.physletb.2011.03.006
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Physics Letters B, Vol. 698, No 2 (Abril 2011)
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
© CERN
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
© CERN
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 8 p.
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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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