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...
| Autores: | , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu: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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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 Society2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/175172Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció 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:diposit.ub.edu:2445/1751722026-05-27T06:46:51Z |
| 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 |
| 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 |
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cc-by (c) Aaij, R. et al., 2020 http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess |
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cc-by (c) Aaij, R. et al., 2020 http://creativecommons.org/licenses/by/3.0/es/ |
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openAccess |
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application/pdf |
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American Physical Society |
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American Physical Society |
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Articles publicats en revistes (Física Quàntica i Astrofísica) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona |
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Universidad de Barcelona |
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Dipòsit Digital de la UB |
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