First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ −
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK +μ+μ− are presented using data corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The branching fractions of the decays are B(B+→K+π+π−μ+μ−)=(4....
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2014 |
| País: | España |
| Recursos: | Universitat Ramon Llull (URL) |
| Repositório: | DAU Arxiu Digital de la Universitat Ramon Llull |
| OAI Identifier: | oai:dau.url.edu:20.500.14342/3193 |
| Acesso em linha: | http://hdl.handle.net/20.500.14342/3193 https://doi.org/10.1007/JHEP10(2014)064 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) 539 |
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First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ −Badalov, AlexeyCalvo Gómez, MíriamVilasís Cardona, XavierLHCb Collaboration - CERNGran col·lisionador d'hadrons (França i Suïssa)Partícules (Física nuclear)539First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK +μ+μ− are presented using data corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The branching fractions of the decays are B(B+→K+π+π−μ+μ−)=(4.36−0.29−0.27(stat)±0.21 (syst)±0.18(norm))×10−7,B(B+→ϕK+μ+μ−)=(0.82−0.19−0.17(stat)−0.10−0.04(syst)±0.27(norm))×10−7, where the uncertainties are statistical, systematic, and due to the uncertainty on the branching fractions of the normalisation modes. A measurement of the differential branching fraction in bins of the invariant mass squared of the dimuon system is also presented for the decay B + → K + π + π − μ + μ −.SpringerUniversitat Ramon Llull. La SalleCERN202020232020202320142014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion18 p.application/pdfhttp://hdl.handle.net/20.500.14342/3193https://doi.org/10.1007/JHEP10(2014)064RECERCAT (Dipòsit de la Recerca de Catalunya)reponame:DAU Arxiu Digital de la Universitat Ramon Llullinstname:Universitat Ramon Llull (URL)InglésJournal of High Energy Physics, 2014, Vol. 2014, No.10 (Octubre)Attribution 4.0 International© CERNhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:dau.url.edu:20.500.14342/31932026-06-21T06:40:37Z |
| dc.title.none.fl_str_mv |
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ − |
| title |
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ − |
| spellingShingle |
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ − Badalov, Alexey Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) 539 |
| title_short |
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ − |
| title_full |
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ − |
| title_fullStr |
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ − |
| title_full_unstemmed |
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ − |
| title_sort |
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK + μ + μ − |
| 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) 539 |
| topic |
Gran col·lisionador d'hadrons (França i Suïssa) Partícules (Física nuclear) 539 |
| description |
First observations of the rare decays B + → K + π + π − μ + μ − and B +→ ϕK +μ+μ− are presented using data corresponding to an integrated luminosity of 3.0 fb−1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The branching fractions of the decays are B(B+→K+π+π−μ+μ−)=(4.36−0.29−0.27(stat)±0.21 (syst)±0.18(norm))×10−7,B(B+→ϕK+μ+μ−)=(0.82−0.19−0.17(stat)−0.10−0.04(syst)±0.27(norm))×10−7, where the uncertainties are statistical, systematic, and due to the uncertainty on the branching fractions of the normalisation modes. A measurement of the differential branching fraction in bins of the invariant mass squared of the dimuon system is also presented for the decay B + → K + π + π − μ + μ −. |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014 2014 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/20.500.14342/3193 https://doi.org/10.1007/JHEP10(2014)064 |
| url |
http://hdl.handle.net/20.500.14342/3193 https://doi.org/10.1007/JHEP10(2014)064 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Journal of High Energy Physics, 2014, Vol. 2014, No.10 (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/ |
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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) |
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Universitat Ramon Llull (URL) |
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DAU Arxiu Digital de la Universitat Ramon Llull |
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DAU Arxiu Digital de la Universitat Ramon Llull |
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1869418322858082304 |
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15,301603 |