Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-)
The angular distributions and the partial branching fraction of the decay B0→K*0μ+μ− are studied by using an integrated luminosity of 0.37 fb−1 of data collected with the LHCb detector. The forward-backward asymmetry of the muons, AFB, the fraction of longitudinal polarization, FL, and the partial...
| Autores: | , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2012 |
| País: | España |
| Recursos: | 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:2445/56447 |
| Acesso em linha: | https://hdl.handle.net/2445/56447 |
| Access Level: | acceso abierto |
| Palavra-chave: | Detectors de radiació Partícules (Física nuclear) Nuclear counters Particles (Nuclear physics) |
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Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-)Abellan Beteta, CarlosCalvo Gómez, MíriamCamboni, AlessandroComerma Montells, AlbertDomingo Bonal, FrancescGarrido Beltrán, LluísGascón Fora, DavidGrabalosa Gándara, MarcGraciani Díaz, RicardoGraugés Pous, EugeniLópez Asamar, EliasMusy, MarcoPérez-Calero Yzquierdo, AntonioPicatoste Olloqui, EduardoPie Valls, B. (Blai)Potterat, CédricPuig Navarro, AlbertRoselló, M.Ruiz, Hugo (Ruiz Pérez)Vázquez Gómez, RicardVilasis-Cardona, XavierLHCb CollaborationDetectors de radiacióPartícules (Física nuclear)Nuclear countersParticles (Nuclear physics)The angular distributions and the partial branching fraction of the decay B0→K*0μ+μ− are studied by using an integrated luminosity of 0.37 fb−1 of data collected with the LHCb detector. The forward-backward asymmetry of the muons, AFB, the fraction of longitudinal polarization, FL, and the partial branching fraction dB/dq2 are determined as a function of the dimuon invariant mass. The measurements are in good agreement with the standard model predictions and are the most precise to date. In the dimuon invariant mass squared range 1.00-6.00 GeV2/c4, the results are AFB=−0.06+0.13−0.14±0.04, FL=0.55±0.10±0.03, and dB/dq2=(0.42±0.06±0.03)×10−7 c4/GeV2. In each case, the first error is statistical and the second systematic.American Physical Society2014201420122014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion8 p.application/pdfhttps://hdl.handle.net/2445/56447Articles 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: http://dx.doi.org/10.1103/PhysRevLett.108.181806Physical Review Letters, 2012, vol. 108, p. 181806-1-181806-8http://dx.doi.org/10.1103/PhysRevLett.108.181806info:eu-repo/grantAgreement/EC/FP7/261323cc by (c) LHCb Collaboration, 2012http://creativecommons.org/licenses/by/3.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/564472026-05-29T05:05:01Z |
| dc.title.none.fl_str_mv |
Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-) |
| title |
Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-) |
| spellingShingle |
Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-) Abellan Beteta, Carlos Detectors de radiació Partícules (Física nuclear) Nuclear counters Particles (Nuclear physics) |
| title_short |
Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-) |
| title_full |
Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-) |
| title_fullStr |
Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-) |
| title_full_unstemmed |
Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-) |
| title_sort |
Differential Branching Fraction and Angular Analysis of the Decay B-0 -> K*(0)mu(+)mu(-) |
| dc.creator.none.fl_str_mv |
Abellan Beteta, Carlos Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Domingo Bonal, Francesc Garrido Beltrán, Lluís Gascón Fora, David Grabalosa Gándara, Marc Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Musy, Marco Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Pie Valls, B. (Blai) Potterat, Cédric Puig Navarro, Albert Roselló, M. Ruiz, Hugo (Ruiz Pérez) 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 Domingo Bonal, Francesc Garrido Beltrán, Lluís Gascón Fora, David Grabalosa Gándara, Marc Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Musy, Marco Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Pie Valls, B. (Blai) Potterat, Cédric Puig Navarro, Albert Roselló, M. Ruiz, Hugo (Ruiz Pérez) Vázquez Gómez, Ricard Vilasis-Cardona, Xavier LHCb Collaboration |
| author_role |
author |
| author2 |
Calvo Gómez, Míriam Camboni, Alessandro Comerma Montells, Albert Domingo Bonal, Francesc Garrido Beltrán, Lluís Gascón Fora, David Grabalosa Gándara, Marc Graciani Díaz, Ricardo Graugés Pous, Eugeni López Asamar, Elias Musy, Marco Pérez-Calero Yzquierdo, Antonio Picatoste Olloqui, Eduardo Pie Valls, B. (Blai) Potterat, Cédric Puig Navarro, Albert Roselló, M. Ruiz, Hugo (Ruiz Pérez) 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 author author author author |
| dc.subject.none.fl_str_mv |
Detectors de radiació Partícules (Física nuclear) Nuclear counters Particles (Nuclear physics) |
| topic |
Detectors de radiació Partícules (Física nuclear) Nuclear counters Particles (Nuclear physics) |
| description |
The angular distributions and the partial branching fraction of the decay B0→K*0μ+μ− are studied by using an integrated luminosity of 0.37 fb−1 of data collected with the LHCb detector. The forward-backward asymmetry of the muons, AFB, the fraction of longitudinal polarization, FL, and the partial branching fraction dB/dq2 are determined as a function of the dimuon invariant mass. The measurements are in good agreement with the standard model predictions and are the most precise to date. In the dimuon invariant mass squared range 1.00-6.00 GeV2/c4, the results are AFB=−0.06+0.13−0.14±0.04, FL=0.55±0.10±0.03, and dB/dq2=(0.42±0.06±0.03)×10−7 c4/GeV2. In each case, the first error is statistical and the second systematic. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012 2014 2014 2014 |
| 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/2445/56447 |
| url |
https://hdl.handle.net/2445/56447 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevLett.108.181806 Physical Review Letters, 2012, vol. 108, p. 181806-1-181806-8 http://dx.doi.org/10.1103/PhysRevLett.108.181806 info:eu-repo/grantAgreement/EC/FP7/261323 |
| dc.rights.none.fl_str_mv |
cc by (c) LHCb Collaboration, 2012 http://creativecommons.org/licenses/by/3.0/ info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
cc by (c) LHCb Collaboration, 2012 http://creativecommons.org/licenses/by/3.0/ |
| eu_rights_str_mv |
openAccess |
| dc.format.none.fl_str_mv |
8 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) |
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Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
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Recercat. Dipósit de la Recerca de Catalunya |
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Recercat. Dipósit de la Recerca de Catalunya |
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1869414235919876096 |
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15,812429 |