Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions
We present a study of the charmless semileptonic B -meson decays B + → ω ℓ + ν and B + → η ℓ + ν . The analysis is based on 3.83 × 10 8 B ¯¯¯ B pairs recorded at the Υ ( 4 S ) resonance with the BABAR detector. The ω mesons are reconstructed in the channel ω → π + π − π 0 and the η mesons in the cha...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2009 |
| País: | España |
| Institución: | Universidad de Barcelona |
| Repositorio: | Dipòsit Digital de la UB |
| OAI Identifier: | oai:diposit.ub.edu:2445/131666 |
| Acceso en línea: | https://hdl.handle.net/2445/131666 |
| Access Level: | acceso abierto |
| Palabra clave: | Física de partícules Experiments Particle physics |
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Measurement of the B+→ωl+ν and B+→ηl+ν branching fractionsGarra Ticó, JordiGraugés Pous, EugeniBABAR CollaborationFísica de partículesExperimentsParticle physicsExperimentsWe present a study of the charmless semileptonic B -meson decays B + → ω ℓ + ν and B + → η ℓ + ν . The analysis is based on 3.83 × 10 8 B ¯¯¯ B pairs recorded at the Υ ( 4 S ) resonance with the BABAR detector. The ω mesons are reconstructed in the channel ω → π + π − π 0 and the η mesons in the channels η → π + π − π 0 and η → γ γ . We measure the branching fractions B ( B + → ω ℓ + ν ) = ( 1.14 ± 0.16 stat ± 0.08 syst ) × 10 − 4 and B ( B + → η ℓ + ν ) = ( 0.31 ± 0.06 stat ± 0.08 syst ) × 10 − 4 .American Physical Society2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/131666Articles 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.79.052011Physical Review D, 2009, vol. 79, num. 5, p. 052011https://doi.org/10.1103/PhysRevD.79.052011(c) American Physical Society, 2009info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1316662026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions |
| title |
Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions |
| spellingShingle |
Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions Garra Ticó, Jordi Física de partícules Experiments Particle physics Experiments |
| title_short |
Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions |
| title_full |
Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions |
| title_fullStr |
Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions |
| title_full_unstemmed |
Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions |
| title_sort |
Measurement of the B+→ωl+ν and B+→ηl+ν branching fractions |
| dc.creator.none.fl_str_mv |
Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
| author |
Garra Ticó, Jordi |
| author_facet |
Garra Ticó, Jordi Graugés Pous, Eugeni BABAR Collaboration |
| author_role |
author |
| author2 |
Graugés Pous, Eugeni BABAR Collaboration |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Física de partícules Experiments Particle physics Experiments |
| topic |
Física de partícules Experiments Particle physics Experiments |
| description |
We present a study of the charmless semileptonic B -meson decays B + → ω ℓ + ν and B + → η ℓ + ν . The analysis is based on 3.83 × 10 8 B ¯¯¯ B pairs recorded at the Υ ( 4 S ) resonance with the BABAR detector. The ω mesons are reconstructed in the channel ω → π + π − π 0 and the η mesons in the channels η → π + π − π 0 and η → γ γ . We measure the branching fractions B ( B + → ω ℓ + ν ) = ( 1.14 ± 0.16 stat ± 0.08 syst ) × 10 − 4 and B ( B + → η ℓ + ν ) = ( 0.31 ± 0.06 stat ± 0.08 syst ) × 10 − 4 . |
| publishDate |
2009 |
| dc.date.none.fl_str_mv |
2009 |
| 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/2445/131666 |
| url |
https://hdl.handle.net/2445/131666 |
| 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/PhysRevD.79.052011 Physical Review D, 2009, vol. 79, num. 5, p. 052011 https://doi.org/10.1103/PhysRevD.79.052011 |
| dc.rights.none.fl_str_mv |
(c) American Physical Society, 2009 info:eu-repo/semantics/openAccess |
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(c) American Physical Society, 2009 |
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openAccess |
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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: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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