Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+
We report the observation of the baryonic B -decay ¯¯¯ B 0 → Λ + c ¯ p K − π + , excluding contributions from the decay ¯¯¯ B 0 → Λ + c ¯¯¯ Λ K − . Using a data sample of 467 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II storage ring at SLAC, the measured branching fraction is...
| Autores: | , , |
|---|---|
| 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:2445/131623 |
| Acceso en línea: | https://hdl.handle.net/2445/131623 |
| Access Level: | acceso abierto |
| Palabra clave: | Física de partícules Experiments Particle physics |
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Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+Garra Ticó, JordiGraugés Pous, EugeniBABAR CollaborationFísica de partículesExperimentsParticle physicsExperimentsWe report the observation of the baryonic B -decay ¯¯¯ B 0 → Λ + c ¯ p K − π + , excluding contributions from the decay ¯¯¯ B 0 → Λ + c ¯¯¯ Λ K − . Using a data sample of 467 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II storage ring at SLAC, the measured branching fraction is ( 4.33 ± 0.82 stat ± 0.33 syst ± 1.13 Λ + c ) × 10 − 5 . In addition we find evidence for the resonant decay ¯¯¯ B 0 → Σ c ( 2455 ) ++ ¯ p K − and determine its branching fraction to be ( 1.11 ± 0.30 stat ± 0.09 syst ± 0.29 Λ + c ) × 10 − 5 . The errors are statistical, systematic, and due to the uncertainty in the Λ + c branching fraction. For the resonant decay ¯¯¯ B 0 → Λ + c ¯ p ¯¯¯¯ K * 0 we obtain an upper limit of 2.42 × 10 − 5 at 90% confidence level.American Physical Society2009info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/131623Articles 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.80.051105Physical Review D, 2009, vol. 80, num. 5, p. 051105https://doi.org/10.1103/PhysRevD.80.051105(c) American Physical Society, 2009info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1316232026-05-27T06:46:51Z |
| dc.title.none.fl_str_mv |
Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+ |
| title |
Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+ |
| spellingShingle |
Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+ Garra Ticó, Jordi Física de partícules Experiments Particle physics Experiments |
| title_short |
Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+ |
| title_full |
Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+ |
| title_fullStr |
Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+ |
| title_full_unstemmed |
Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+ |
| title_sort |
Observation of the baryonic B-decay ¯¯¯B0→Λ+c¯pK−π+ |
| 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 report the observation of the baryonic B -decay ¯¯¯ B 0 → Λ + c ¯ p K − π + , excluding contributions from the decay ¯¯¯ B 0 → Λ + c ¯¯¯ Λ K − . Using a data sample of 467 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II storage ring at SLAC, the measured branching fraction is ( 4.33 ± 0.82 stat ± 0.33 syst ± 1.13 Λ + c ) × 10 − 5 . In addition we find evidence for the resonant decay ¯¯¯ B 0 → Σ c ( 2455 ) ++ ¯ p K − and determine its branching fraction to be ( 1.11 ± 0.30 stat ± 0.09 syst ± 0.29 Λ + c ) × 10 − 5 . The errors are statistical, systematic, and due to the uncertainty in the Λ + c branching fraction. For the resonant decay ¯¯¯ B 0 → Λ + c ¯ p ¯¯¯¯ K * 0 we obtain an upper limit of 2.42 × 10 − 5 at 90% confidence level. |
| 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 |
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article |
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publishedVersion |
| dc.identifier.none.fl_str_mv |
https://hdl.handle.net/2445/131623 |
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https://hdl.handle.net/2445/131623 |
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Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.80.051105 Physical Review D, 2009, vol. 80, num. 5, p. 051105 https://doi.org/10.1103/PhysRevD.80.051105 |
| 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 |
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American Physical Society |
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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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15.301603 |