B meson decays to charmless meson pairs containing η or η'mesons

We present updated measurements of the branching fractions for B 0 meson decays to η K 0 , η η , η ϕ , η ω , η ′ K 0 , η ′ η ′ , η ′ ϕ , and η ′ ω , and branching fractions and C P -violating charge asymmetries for B + decays to η π + , η K + , η ′ π + , and η ′ K + . The data represent the full dat...

Descripción completa

Detalles Bibliográficos
Autores: Garra Ticó, Jordi, Graugés Pous, Eugeni, BABAR Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2009
País:España
Institución: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:2445/131580
Acceso en línea:https://hdl.handle.net/2445/131580
Access Level:acceso abierto
Palabra clave:Física de partícules
Experiments
Particle physics
id ES_0b5476a32feaa2bda9aabcb57d7e3c93
oai_identifier_str oai:recercat.cat:2445/131580
network_acronym_str ES
network_name_str España
repository_id_str
spelling B meson decays to charmless meson pairs containing η or η'mesonsGarra Ticó, JordiGraugés Pous, EugeniBABAR CollaborationFísica de partículesExperimentsParticle physicsExperimentsWe present updated measurements of the branching fractions for B 0 meson decays to η K 0 , η η , η ϕ , η ω , η ′ K 0 , η ′ η ′ , η ′ ϕ , and η ′ ω , and branching fractions and C P -violating charge asymmetries for B + decays to η π + , η K + , η ′ π + , and η ′ K + . The data represent the full data set of 467 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II asymmetric-energy e + e − collider at the SLAC National Accelerator Laboratory. Besides large signals for the four charged B decay modes and for B 0 → η ′ K 0 , we find evidence for three B 0 decay modes at greater than 3.0 σ significance. We find B ( B 0 → η K 0 ) = ( 1.15 + 0.43 − 0.38 ± 0.09 ) × 10 − 6 , B ( B 0 → η ω ) = ( 0.94 + 0.35 − 0.30 ± 0.09 ) × 10 − 6 , and B ( B 0 → η ′ ω ) = ( 1.01 + 0.46 − 0.38 ± 0.09 ) × 10 − 6 , where the first (second) uncertainty is statistical (systematic). For the B + → η K + decay mode, we measure the charge asymmetry A ch ( B + → η K + ) = − 0.36 ± 0.11 ± 0.03 .American Physical Society2019201920092019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion11 p.application/pdfhttps://hdl.handle.net/2445/131580Articles 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.80.112002Physical Review D, 2009, vol. 80, num. 11, p. 112002https://doi.org/10.1103/PhysRevD.80.112002(c) American Physical Society, 2009info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1315802026-05-29T05:05:01Z
dc.title.none.fl_str_mv B meson decays to charmless meson pairs containing η or η'mesons
title B meson decays to charmless meson pairs containing η or η'mesons
spellingShingle B meson decays to charmless meson pairs containing η or η'mesons
Garra Ticó, Jordi
Física de partícules
Experiments
Particle physics
Experiments
title_short B meson decays to charmless meson pairs containing η or η'mesons
title_full B meson decays to charmless meson pairs containing η or η'mesons
title_fullStr B meson decays to charmless meson pairs containing η or η'mesons
title_full_unstemmed B meson decays to charmless meson pairs containing η or η'mesons
title_sort B meson decays to charmless meson pairs containing η or η'mesons
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 updated measurements of the branching fractions for B 0 meson decays to η K 0 , η η , η ϕ , η ω , η ′ K 0 , η ′ η ′ , η ′ ϕ , and η ′ ω , and branching fractions and C P -violating charge asymmetries for B + decays to η π + , η K + , η ′ π + , and η ′ K + . The data represent the full data set of 467 × 10 6 B ¯¯¯ B pairs collected with the BABAR detector at the PEP-II asymmetric-energy e + e − collider at the SLAC National Accelerator Laboratory. Besides large signals for the four charged B decay modes and for B 0 → η ′ K 0 , we find evidence for three B 0 decay modes at greater than 3.0 σ significance. We find B ( B 0 → η K 0 ) = ( 1.15 + 0.43 − 0.38 ± 0.09 ) × 10 − 6 , B ( B 0 → η ω ) = ( 0.94 + 0.35 − 0.30 ± 0.09 ) × 10 − 6 , and B ( B 0 → η ′ ω ) = ( 1.01 + 0.46 − 0.38 ± 0.09 ) × 10 − 6 , where the first (second) uncertainty is statistical (systematic). For the B + → η K + decay mode, we measure the charge asymmetry A ch ( B + → η K + ) = − 0.36 ± 0.11 ± 0.03 .
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/2445/131580
url https://hdl.handle.net/2445/131580
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.80.112002
Physical Review D, 2009, vol. 80, num. 11, p. 112002
https://doi.org/10.1103/PhysRevD.80.112002
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 11 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
_version_ 1869403214568226816
score 15,812455

Similares en LA Referencia