Dalitz plot analysis of B−→D+π−π−

We report on a Dalitz plot analysis of B − → D + π − π − decays, based on a sample of about 383 × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find the total branching fraction of the three-body decay: B ( B − → D + π − π − )...

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Detalhes bibliográficos
Autores: Garra Ticó, Jordi, Graugés Pous, Eugeni, BABAR Collaboration
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2009
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:2445/131662
Acesso em linha:https://hdl.handle.net/2445/131662
Access Level:acceso abierto
Palavra-chave:Física de partícules
Experiments
Particle physics
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spelling Dalitz plot analysis of B−→D+π−π−Garra Ticó, JordiGraugés Pous, EugeniBABAR CollaborationFísica de partículesExperimentsParticle physicsExperimentsWe report on a Dalitz plot analysis of B − → D + π − π − decays, based on a sample of about 383 × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find the total branching fraction of the three-body decay: B ( B − → D + π − π − ) = ( 1.08 ± 0.03 ± 0.05 ) × 10 − 3 . We observe the established D * 0 2 and confirm the existence of D * 0 0 in their decays to D + π − , where the D * 0 2 and D * 0 0 are the 2 + and 0 + c ¯ u P -wave states, respectively. We measure the masses and widths of D * 0 2 and D * 0 0 to be: m D * 0 2 = ( 2460.4 ± 1.2 ± 1.2 ± 1.9 )     MeV / c 2 , Γ D * 0 2 = ( 41.8 ± 2.5 ± 2.1 ± 2.0 )     MeV , m D * 0 0 = ( 2297 ± 8 ± 5 ± 19 )     MeV / c 2 , and Γ D * 0 0 = ( 273 ± 12 ± 17 ± 45 )     MeV . The stated errors reflect the statistical and systematic uncertainties, and the uncertainty related to the assumed composition of signal events and the theoretical model.American Physical Society2019201920092019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion16 p.application/pdfhttps://hdl.handle.net/2445/131662Articles 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.79.112004Physical Review D, 2009, vol. 79, num. 11, p. 112004https://doi.org/10.1103/PhysRevD.79.112004(c) American Physical Society, 2009info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1316622026-05-29T05:05:01Z
dc.title.none.fl_str_mv Dalitz plot analysis of B−→D+π−π−
title Dalitz plot analysis of B−→D+π−π−
spellingShingle Dalitz plot analysis of B−→D+π−π−
Garra Ticó, Jordi
Física de partícules
Experiments
Particle physics
Experiments
title_short Dalitz plot analysis of B−→D+π−π−
title_full Dalitz plot analysis of B−→D+π−π−
title_fullStr Dalitz plot analysis of B−→D+π−π−
title_full_unstemmed Dalitz plot analysis of B−→D+π−π−
title_sort Dalitz plot analysis of B−→D+π−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 on a Dalitz plot analysis of B − → D + π − π − decays, based on a sample of about 383 × 10 6 Υ ( 4 S ) → B ¯¯¯ B decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We find the total branching fraction of the three-body decay: B ( B − → D + π − π − ) = ( 1.08 ± 0.03 ± 0.05 ) × 10 − 3 . We observe the established D * 0 2 and confirm the existence of D * 0 0 in their decays to D + π − , where the D * 0 2 and D * 0 0 are the 2 + and 0 + c ¯ u P -wave states, respectively. We measure the masses and widths of D * 0 2 and D * 0 0 to be: m D * 0 2 = ( 2460.4 ± 1.2 ± 1.2 ± 1.9 )     MeV / c 2 , Γ D * 0 2 = ( 41.8 ± 2.5 ± 2.1 ± 2.0 )     MeV , m D * 0 0 = ( 2297 ± 8 ± 5 ± 19 )     MeV / c 2 , and Γ D * 0 0 = ( 273 ± 12 ± 17 ± 45 )     MeV . The stated errors reflect the statistical and systematic uncertainties, and the uncertainty related to the assumed composition of signal events and the theoretical model.
publishDate 2009
dc.date.none.fl_str_mv 2009
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/2445/131662
url https://hdl.handle.net/2445/131662
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.79.112004
Physical Review D, 2009, vol. 79, num. 11, p. 112004
https://doi.org/10.1103/PhysRevD.79.112004
dc.rights.none.fl_str_mv (c) American Physical Society, 2009
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Physical Society, 2009
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 16 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 15.198674

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