Search for resonances decaying to ηcπ+π- in two-photon interactions

We report a study of the process γ γ → X → η c π + π − , where X stands for one of the resonances χ c 2 ( 1 P ) , η c ( 2 S ) , X ( 3872 ) , X ( 3915 ) , or χ c 2 ( 2 P ) . The analysis is performed with a data sample of 473.9     fb − 1 collected with the BABAR detector at the PEP-II asymmetric-ene...

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Detalles Bibliográficos
Autores: Garra Ticó, Jordi, Graugés Pous, Eugeni, BABAR Collaboration
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/131703
Acceso en línea:https://hdl.handle.net/2445/131703
Access Level:acceso abierto
Palabra clave:Física de partícules
Fotons
Experiments
Particle physics
Photons
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spelling Search for resonances decaying to ηcπ+π- in two-photon interactionsGarra Ticó, JordiGraugés Pous, EugeniBABAR CollaborationFísica de partículesFotonsExperimentsParticle physicsPhotonsExperimentsWe report a study of the process γ γ → X → η c π + π − , where X stands for one of the resonances χ c 2 ( 1 P ) , η c ( 2 S ) , X ( 3872 ) , X ( 3915 ) , or χ c 2 ( 2 P ) . The analysis is performed with a data sample of 473.9     fb − 1 collected with the BABAR detector at the PEP-II asymmetric-energy electron-positron collider. We do not observe a significant signal for any channel, and calculate 90% confidence-level upper limits on the products of branching fractions and two-photon widths Γ X → γ γ B ( X → η c π + π − ) : 15.7 eV for χ c 2 ( 1 P ) , 133 eV for η c ( 2 S ) , 11.1 eV for X ( 3872 ) (assuming it to be a spin-2 state), 16 eV for X ( 3915 ) (assuming it to be a spin-2 state), and 18 eV for χ c 2 ( 2 P ) . We also report upper limits on the ratios of branching fractions B ( η c ( 2 S ) → η c π + π − ) / B ( η c ( 2 S ) → K 0 S K + π − ) < 10.0 and B ( χ c 2 ( 1 P ) → η c π + π − ) / B ( χ c 2 ( 1 P ) → K 0 S K + π − ) < 32.9 at the 90% confidence level.American Physical Society2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/131703Articles 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.86.092005Physical Review D, 2012, vol. 86, num. 9, p. 092005https://doi.org/10.1103/PhysRevD.86.092005(c) American Physical Society, 2012info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1317032026-05-27T06:46:51Z
dc.title.none.fl_str_mv Search for resonances decaying to ηcπ+π- in two-photon interactions
title Search for resonances decaying to ηcπ+π- in two-photon interactions
spellingShingle Search for resonances decaying to ηcπ+π- in two-photon interactions
Garra Ticó, Jordi
Física de partícules
Fotons
Experiments
Particle physics
Photons
Experiments
title_short Search for resonances decaying to ηcπ+π- in two-photon interactions
title_full Search for resonances decaying to ηcπ+π- in two-photon interactions
title_fullStr Search for resonances decaying to ηcπ+π- in two-photon interactions
title_full_unstemmed Search for resonances decaying to ηcπ+π- in two-photon interactions
title_sort Search for resonances decaying to ηcπ+π- in two-photon interactions
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
Fotons
Experiments
Particle physics
Photons
Experiments
topic Física de partícules
Fotons
Experiments
Particle physics
Photons
Experiments
description We report a study of the process γ γ → X → η c π + π − , where X stands for one of the resonances χ c 2 ( 1 P ) , η c ( 2 S ) , X ( 3872 ) , X ( 3915 ) , or χ c 2 ( 2 P ) . The analysis is performed with a data sample of 473.9     fb − 1 collected with the BABAR detector at the PEP-II asymmetric-energy electron-positron collider. We do not observe a significant signal for any channel, and calculate 90% confidence-level upper limits on the products of branching fractions and two-photon widths Γ X → γ γ B ( X → η c π + π − ) : 15.7 eV for χ c 2 ( 1 P ) , 133 eV for η c ( 2 S ) , 11.1 eV for X ( 3872 ) (assuming it to be a spin-2 state), 16 eV for X ( 3915 ) (assuming it to be a spin-2 state), and 18 eV for χ c 2 ( 2 P ) . We also report upper limits on the ratios of branching fractions B ( η c ( 2 S ) → η c π + π − ) / B ( η c ( 2 S ) → K 0 S K + π − ) < 10.0 and B ( χ c 2 ( 1 P ) → η c π + π − ) / B ( χ c 2 ( 1 P ) → K 0 S K + π − ) < 32.9 at the 90% confidence level.
publishDate 2012
dc.date.none.fl_str_mv 2012
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/2445/131703
url https://hdl.handle.net/2445/131703
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.86.092005
Physical Review D, 2012, vol. 86, num. 9, p. 092005
https://doi.org/10.1103/PhysRevD.86.092005
dc.rights.none.fl_str_mv (c) American Physical Society, 2012
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Physical Society, 2012
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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