Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)

A search for the decays B0s→e+e− and B0→e+e− is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 2  fb−1, respectively. No signal is observed. Assuming no contribu...

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Autores: Alfonso Albero, Alejandro, Calvo Gómez, Míriam, Camboni, Alessandro, Coquereau, Samuel, Garrido Beltrán, Lluís, Gascón Fora, David, Gironella Gironell, Pere, Graciani Díaz, Ricardo, Graugés Pous, Eugeni, Golobardes, Elisabet, Manera Escalero, R., Vázquez Gómez, Ricard, Vilasis-Cardona, Xavier, LHCb Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
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:2445/175172
Acceso en línea:https://hdl.handle.net/2445/175172
Access Level:acceso abierto
Palabra clave:Gran Col·lisionador d'Hadrons
Protons
Large Hadron Collider (France and Switzerland)
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spelling Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)Alfonso Albero, AlejandroCalvo Gómez, MíriamCamboni, AlessandroCoquereau, SamuelGarrido Beltrán, LluísGascón Fora, DavidGironella Gironell, PereGraciani Díaz, RicardoGraugés Pous, EugeniGolobardes, ElisabetManera Escalero, R.Vázquez Gómez, RicardVilasis-Cardona, XavierLHCb CollaborationGran Col·lisionador d'HadronsProtonsLarge Hadron Collider (France and Switzerland)ProtonsA search for the decays B0s→e+e− and B0→e+e− is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 2  fb−1, respectively. No signal is observed. Assuming no contribution from B0→e+e− decays, an upper limit on the branching fraction B(B0s→e+e−)<9.4(11.2)×10−9 is obtained at 90(95)% confidence level. If no B0s→e+e− contribution is assumed, a limit of B(B0→e+e−)<2.5(3.0)×10−9 is determined at 90(95)% confidence level. These upper limits are more than one order of magnitude lower than the previous values.American Physical Society2021202120202021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion11 p.application/pdfhttps://hdl.handle.net/2445/175172Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.124.211802Physical Review Letters, 2020, vol. 124, num. 21, p. 211802https://doi.org/10.1103/PhysRevLett.124.211802info:eu-repo/grantAgreement/EC/H2020/714536info:eu-repo/grantAgreement/EC/H2020/792684cc-by (c) Aaij, R. et al., 2020http://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1751722026-05-29T05:05:01Z
dc.title.none.fl_str_mv Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
title Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
spellingShingle Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
Alfonso Albero, Alejandro
Gran Col·lisionador d'Hadrons
Protons
Large Hadron Collider (France and Switzerland)
Protons
title_short Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
title_full Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
title_fullStr Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
title_full_unstemmed Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
title_sort Search for the Rare Decays B-s(0) -> e(+) e(-) and B-0 -> e(+) e(-)
dc.creator.none.fl_str_mv Alfonso Albero, Alejandro
Calvo Gómez, Míriam
Camboni, Alessandro
Coquereau, Samuel
Garrido Beltrán, Lluís
Gascón Fora, David
Gironella Gironell, Pere
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Golobardes, Elisabet
Manera Escalero, R.
Vázquez Gómez, Ricard
Vilasis-Cardona, Xavier
LHCb Collaboration
author Alfonso Albero, Alejandro
author_facet Alfonso Albero, Alejandro
Calvo Gómez, Míriam
Camboni, Alessandro
Coquereau, Samuel
Garrido Beltrán, Lluís
Gascón Fora, David
Gironella Gironell, Pere
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Golobardes, Elisabet
Manera Escalero, R.
Vázquez Gómez, Ricard
Vilasis-Cardona, Xavier
LHCb Collaboration
author_role author
author2 Calvo Gómez, Míriam
Camboni, Alessandro
Coquereau, Samuel
Garrido Beltrán, Lluís
Gascón Fora, David
Gironella Gironell, Pere
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Golobardes, Elisabet
Manera Escalero, R.
Vázquez Gómez, Ricard
Vilasis-Cardona, Xavier
LHCb Collaboration
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Gran Col·lisionador d'Hadrons
Protons
Large Hadron Collider (France and Switzerland)
Protons
topic Gran Col·lisionador d'Hadrons
Protons
Large Hadron Collider (France and Switzerland)
Protons
description A search for the decays B0s→e+e− and B0→e+e− is performed using data collected with the LHCb experiment in proton-proton collisions at center-of-mass energies of 7, 8, and 13 TeV, corresponding to integrated luminosities of 1, 2, and 2  fb−1, respectively. No signal is observed. Assuming no contribution from B0→e+e− decays, an upper limit on the branching fraction B(B0s→e+e−)<9.4(11.2)×10−9 is obtained at 90(95)% confidence level. If no B0s→e+e− contribution is assumed, a limit of B(B0→e+e−)<2.5(3.0)×10−9 is determined at 90(95)% confidence level. These upper limits are more than one order of magnitude lower than the previous values.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
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/2445/175172
url https://hdl.handle.net/2445/175172
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.124.211802
Physical Review Letters, 2020, vol. 124, num. 21, p. 211802
https://doi.org/10.1103/PhysRevLett.124.211802
info:eu-repo/grantAgreement/EC/H2020/714536
info:eu-repo/grantAgreement/EC/H2020/792684
dc.rights.none.fl_str_mv cc-by (c) Aaij, R. et al., 2020
http://creativecommons.org/licenses/by/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by (c) Aaij, R. et al., 2020
http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 11 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 Articles publicats en revistes (Física Quàntica i Astrofísica)
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
_version_ 1869404414641438720
score 15,812455

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