Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕ

Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the B 0 s  → ϕϕ branching fraction is measured to be B(B0s→ϕϕ)=(1.84±0.05(stat)±0.07(syst)±0.11(fs/fd)±0.12(norm))×10−5, where f s /f d represents the ratio of...

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Detalles Bibliográficos
Autores: Badalov, Alexey, Calvo Gómez, Míriam, Vilasís Cardona, Xavier, LHCb Collaboration - CERN
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2015
País:España
Institución:Universitat Ramon Llull (URL)
Repositorio:DAU Arxiu Digital de la Universitat Ramon Llull
OAI Identifier:oai:dau.url.edu:20.500.14342/3159
Acceso en línea:http://hdl.handle.net/20.500.14342/3159
https://doi.org/10.1007/JHEP10(2015)053
Access Level:acceso abierto
Palabra clave:Gran col·lisionador d'hadrons (França i Suïssa)
Partícules (Física nuclear)
Col·lisions (Física nuclear)
539
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spelling Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕBadalov, AlexeyCalvo Gómez, MíriamVilasís Cardona, XavierLHCb Collaboration - CERNGran col·lisionador d'hadrons (França i Suïssa)Partícules (Física nuclear)Col·lisions (Física nuclear)539Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the B 0 s  → ϕϕ branching fraction is measured to be B(B0s→ϕϕ)=(1.84±0.05(stat)±0.07(syst)±0.11(fs/fd)±0.12(norm))×10−5, where f s /f d represents the ratio of the B 0 s to B 0 production cross-sections, and the B 0 → ϕK *(892)0 decay mode is used for normalization. This is the most precise measurement of this branching fraction to date, representing a factor five reduction in the statistical uncertainty compared with the previous best measurement. A search for the decay B 0 → ϕϕ is also made. No signal is observed, and an upper limit on the branching fraction is set as B(B0→ϕϕ)<2.8×10−8 at 90% confidence level. This is a factor of seven improvement compared to the previous best limit.SpringerUniversitat Ramon Llull. La SalleCERN202020232020202320152015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion18 p.application/pdfhttp://hdl.handle.net/20.500.14342/3159https://doi.org/10.1007/JHEP10(2015)053RECERCAT (Dipòsit de la Recerca de Catalunya)reponame:DAU Arxiu Digital de la Universitat Ramon Llullinstname:Universitat Ramon Llull (URL)InglésJournal of High Energy Physics, 2015, Vol. 2015, No.8 (Octubre)Attribution 4.0 International© CERNhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:dau.url.edu:20.500.14342/31592026-06-21T06:40:37Z
dc.title.none.fl_str_mv Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
title Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
spellingShingle Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
Badalov, Alexey
Gran col·lisionador d'hadrons (França i Suïssa)
Partícules (Física nuclear)
Col·lisions (Física nuclear)
539
title_short Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
title_full Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
title_fullStr Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
title_full_unstemmed Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
title_sort Measurement of the B 0 s  → ϕϕ branching fraction and search for the decay B 0 → ϕϕ
dc.creator.none.fl_str_mv Badalov, Alexey
Calvo Gómez, Míriam
Vilasís Cardona, Xavier
LHCb Collaboration - CERN
author Badalov, Alexey
author_facet Badalov, Alexey
Calvo Gómez, Míriam
Vilasís Cardona, Xavier
LHCb Collaboration - CERN
author_role author
author2 Calvo Gómez, Míriam
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)
Partícules (Física nuclear)
Col·lisions (Física nuclear)
539
topic Gran col·lisionador d'hadrons (França i Suïssa)
Partícules (Física nuclear)
Col·lisions (Física nuclear)
539
description Using a dataset corresponding to an integrated luminosity of 3.0 fb−1 collected in pp collisions at centre-of-mass energies of 7 and 8 TeV, the B 0 s  → ϕϕ branching fraction is measured to be B(B0s→ϕϕ)=(1.84±0.05(stat)±0.07(syst)±0.11(fs/fd)±0.12(norm))×10−5, where f s /f d represents the ratio of the B 0 s to B 0 production cross-sections, and the B 0 → ϕK *(892)0 decay mode is used for normalization. This is the most precise measurement of this branching fraction to date, representing a factor five reduction in the statistical uncertainty compared with the previous best measurement. A search for the decay B 0 → ϕϕ is also made. No signal is observed, and an upper limit on the branching fraction is set as B(B0→ϕϕ)<2.8×10−8 at 90% confidence level. This is a factor of seven improvement compared to the previous best limit.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015
2020
2020
2023
2023
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/20.500.14342/3159
https://doi.org/10.1007/JHEP10(2015)053
url http://hdl.handle.net/20.500.14342/3159
https://doi.org/10.1007/JHEP10(2015)053
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Journal of High Energy Physics, 2015, Vol. 2015, No.8 (Octubre)
dc.rights.none.fl_str_mv Attribution 4.0 International
© CERN
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution 4.0 International
© CERN
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 18 p.
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv RECERCAT (Dipòsit de la Recerca de Catalunya)
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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