Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decays
The decays B + c → J / ψ D + s and B + c → J / ψ D * + s are observed for the first time using a dataset, corresponding to an integrated luminosity of 3 fb − 1 , collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of √ s = 7 and 8 TeV. The statistical signific...
| Autores: | , , , , , , , , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/131841 |
| Acceso en línea: | https://hdl.handle.net/2445/131841 |
| Access Level: | acceso abierto |
| Palabra clave: | Física de partícules Experiments Particle physics |
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Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decaysAbellan Beteta, CarlosCalvo Gómez, MíriamCamboni, AlessandroComerma Montells, AlbertGarrido Beltrán, LluísGraciani Díaz, RicardoGraugés Pous, EugeniLópez Asamar, EliasOyanguren Campos, Arantza dePérez-Calero Yzquierdo, AntonioPicatoste Olloqui, EduardoPotterat, CédricRives Molina, Vicente JoséRuiz, Hugo (Ruiz Pérez)Ruiz Valls, PabloVázquez Gómez, RicardVilasis-Cardona, XavierLHCb CollaborationFísica de partículesExperimentsParticle physicsExperimentsThe decays B + c → J / ψ D + s and B + c → J / ψ D * + s are observed for the first time using a dataset, corresponding to an integrated luminosity of 3 fb − 1 , collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of √ s = 7 and 8 TeV. The statistical significance for both signals is in excess of 9 standard deviations. The following ratios of branching fractions are measured to be B ( B + c → J / ψ D + s ) B ( B + c → J / ψ π + ) = 2.90 ± 0.57 ± 0.24 , B ( B + c → J / ψ D * + s ) B ( B + c → J / ψ D + s ) = 2.37 ± 0.56 ± 0.10 , where the first uncertainties are statistical and the second systematic. The mass of the B + c meson is measured to be m B + c = 6276.28 ± 1.44 ( stat ) ± 0.36 ( syst ) MeV / c 2 , using the B + c → J / ψ D + s decay mode.American Physical Society2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/131841Articles 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/PhysRevD.87.112012Physical Review D, 2013, vol. 87, num. 11, p. 112012https://doi.org/10.1103/PhysRevD.87.112012cc by (c) CERN; LHCb Collaboration, 2013http://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1318412026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decays |
| title |
Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decays |
| spellingShingle |
Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decays Abellan Beteta, Carlos Física de partícules Experiments Particle physics Experiments |
| title_short |
Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decays |
| title_full |
Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decays |
| title_fullStr |
Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decays |
| title_full_unstemmed |
Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decays |
| title_sort |
Observation of Bc+ → J/ψDs+ and Bc+ → J/ψDs*+ decays |
| dc.creator.none.fl_str_mv |
Abellan Beteta, Carlos Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Oyanguren Campos, Arantza de Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Potterat, Cédric Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Ruiz Valls, Pablo Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration |
| author |
Abellan Beteta, Carlos |
| author_facet |
Abellan Beteta, Carlos Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Oyanguren Campos, Arantza de Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Potterat, Cédric Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Ruiz Valls, Pablo Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration |
| author_role |
author |
| author2 |
Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Garrido Beltrán, Lluís Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Oyanguren Campos, Arantza de Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Potterat, Cédric Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) Ruiz Valls, Pablo Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration |
| author2_role |
author author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Física de partícules Experiments Particle physics Experiments |
| topic |
Física de partícules Experiments Particle physics Experiments |
| description |
The decays B + c → J / ψ D + s and B + c → J / ψ D * + s are observed for the first time using a dataset, corresponding to an integrated luminosity of 3 fb − 1 , collected by the LHCb experiment in proton-proton collisions at center-of-mass energies of √ s = 7 and 8 TeV. The statistical significance for both signals is in excess of 9 standard deviations. The following ratios of branching fractions are measured to be B ( B + c → J / ψ D + s ) B ( B + c → J / ψ π + ) = 2.90 ± 0.57 ± 0.24 , B ( B + c → J / ψ D * + s ) B ( B + c → J / ψ D + s ) = 2.37 ± 0.56 ± 0.10 , where the first uncertainties are statistical and the second systematic. The mass of the B + c meson is measured to be m B + c = 6276.28 ± 1.44 ( stat ) ± 0.36 ( syst ) MeV / c 2 , using the B + c → J / ψ D + s decay mode. |
| publishDate |
2013 |
| dc.date.none.fl_str_mv |
2013 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/131841 |
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https://hdl.handle.net/2445/131841 |
| dc.language.none.fl_str_mv |
Inglés |
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Inglés |
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Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.87.112012 Physical Review D, 2013, vol. 87, num. 11, p. 112012 https://doi.org/10.1103/PhysRevD.87.112012 |
| dc.rights.none.fl_str_mv |
cc by (c) CERN; LHCb Collaboration, 2013 http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess |
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cc by (c) CERN; LHCb Collaboration, 2013 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 |
| publisher.none.fl_str_mv |
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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Dipòsit Digital de la UB |
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