Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−

We report the observation of the baryonic B decay ¯¯¯ B 0 → Λ + c ¯¯¯ Λ K − with a significance larger than 7 standard deviations based on 471 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II storage ring at SLAC. We measure the branching fraction for the decay ¯¯¯ B 0 → Λ + c ¯¯...

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Authors: Garra Ticó, Jordi, Graugés Pous, Eugeni, BABAR Collaboration
Format: article
Status:Published version
Publication Date:2011
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/131759
Online Access:https://hdl.handle.net/2445/131759
Access Level:Open access
Keyword:Física de partícules
Experiments
Particle physics
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spelling Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−Garra Ticó, JordiGraugés Pous, EugeniBABAR CollaborationFísica de partículesExperimentsParticle physicsExperimentsWe report the observation of the baryonic B decay ¯¯¯ B 0 → Λ + c ¯¯¯ Λ K − with a significance larger than 7 standard deviations based on 471 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II storage ring at SLAC. We measure the branching fraction for the decay ¯¯¯ B 0 → Λ + c ¯¯¯ Λ K − to be ( 3.8 ± 0.8 stat ± 0.2 sys ± 1.0 Λ + c ) × 10 − 5 . The uncertainties are statistical, systematic, and due to the uncertainty in the Λ + c branching fraction. We find that the Λ + c K − invariant-mass distribution shows an enhancement above 3.5     GeV / c 2 .American Physical Society2019201920112019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion7 p.application/pdfhttps://hdl.handle.net/2445/131759Articles 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: https://doi.org/10.1103/PhysRevD.84.071102Physical Review D, 2011, vol. 84, num. 7, p. 071102https://doi.org/10.1103/PhysRevD.84.071102(c) American Physical Society, 2011info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1317592026-05-29T05:05:01Z
dc.title.none.fl_str_mv Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−
title Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−
spellingShingle Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−
Garra Ticó, Jordi
Física de partícules
Experiments
Particle physics
Experiments
title_short Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−
title_full Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−
title_fullStr Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−
title_full_unstemmed Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−
title_sort Observation of the baryonic B decay ¯¯¯B0→Λ+c¯¯¯ΛK−
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 ¯¯¯ Λ K − with a significance larger than 7 standard deviations based on 471 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II storage ring at SLAC. We measure the branching fraction for the decay ¯¯¯ B 0 → Λ + c ¯¯¯ Λ K − to be ( 3.8 ± 0.8 stat ± 0.2 sys ± 1.0 Λ + c ) × 10 − 5 . The uncertainties are statistical, systematic, and due to the uncertainty in the Λ + c branching fraction. We find that the Λ + c K − invariant-mass distribution shows an enhancement above 3.5     GeV / c 2 .
publishDate 2011
dc.date.none.fl_str_mv 2011
2019
2019
2019
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/2445/131759
url https://hdl.handle.net/2445/131759
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.84.071102
Physical Review D, 2011, vol. 84, num. 7, p. 071102
https://doi.org/10.1103/PhysRevD.84.071102
dc.rights.none.fl_str_mv (c) American Physical Society, 2011
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Physical Society, 2011
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 7 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)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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