Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)

We search for a low-mass scalar C P -odd Higgs boson, A 0 , produced in the radiative decay of the upsilon resonance and decaying into a τ + τ − pair: Υ ( 1 S ) → γ A 0 . The production of Υ ( 1 S ) mesons is tagged by Υ ( 2 S ) → π + π − Υ ( 1 S ) transitions, using a sample of ( 98.3 ± 0.9 ) × 10...

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Detalhes bibliográficos
Autores: Garra Ticó, Jordi, Graugés Pous, Eugeni, BABAR Collaboration
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2013
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/131791
Acesso em linha:https://hdl.handle.net/2445/131791
Access Level:acceso abierto
Palavra-chave:Física de partícules
Experiments
Bosons de Higgs
Particle physics
Higgs bosons
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spelling Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)Garra Ticó, JordiGraugés Pous, EugeniBABAR CollaborationFísica de partículesExperimentsBosons de HiggsParticle physicsExperimentsHiggs bosonsWe search for a low-mass scalar C P -odd Higgs boson, A 0 , produced in the radiative decay of the upsilon resonance and decaying into a τ + τ − pair: Υ ( 1 S ) → γ A 0 . The production of Υ ( 1 S ) mesons is tagged by Υ ( 2 S ) → π + π − Υ ( 1 S ) transitions, using a sample of ( 98.3 ± 0.9 ) × 10 6 Υ ( 2 S ) mesons collected by the BABAR detector. We find no evidence for a Higgs boson in the mass range 3.5 ≤ m A 0 ≤ 9.2     GeV , and combine these results with our previous search for the tau decays of the light Higgs in radiative Υ ( 3 S ) decays, setting limits on the coupling of A 0 to the b ¯ b quarks in the range 0.09-1.9. Our measurements improve the constraints on the parameters of the next-to-minimal-supersymmetric Standard Model and similar theories with low-mass scalar degrees of freedom.American Physical Society2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/131791Articles 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.88.071102Physical Review D, 2013, vol. 88, num. 7, p. 071102(R)https://doi.org/10.1103/PhysRevD.88.071102(c) American Physical Society, 2013info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/1317912026-05-27T06:46:51Z
dc.title.none.fl_str_mv Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)
title Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)
spellingShingle Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)
Garra Ticó, Jordi
Física de partícules
Experiments
Bosons de Higgs
Particle physics
Experiments
Higgs bosons
title_short Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)
title_full Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)
title_fullStr Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)
title_full_unstemmed Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)
title_sort Search for a low-mass scalar Higgs boson decaying to a tau pair in single-photon decays of Υ(1S)
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
Bosons de Higgs
Particle physics
Experiments
Higgs bosons
topic Física de partícules
Experiments
Bosons de Higgs
Particle physics
Experiments
Higgs bosons
description We search for a low-mass scalar C P -odd Higgs boson, A 0 , produced in the radiative decay of the upsilon resonance and decaying into a τ + τ − pair: Υ ( 1 S ) → γ A 0 . The production of Υ ( 1 S ) mesons is tagged by Υ ( 2 S ) → π + π − Υ ( 1 S ) transitions, using a sample of ( 98.3 ± 0.9 ) × 10 6 Υ ( 2 S ) mesons collected by the BABAR detector. We find no evidence for a Higgs boson in the mass range 3.5 ≤ m A 0 ≤ 9.2     GeV , and combine these results with our previous search for the tau decays of the light Higgs in radiative Υ ( 3 S ) decays, setting limits on the coupling of A 0 to the b ¯ b quarks in the range 0.09-1.9. Our measurements improve the constraints on the parameters of the next-to-minimal-supersymmetric Standard Model and similar theories with low-mass scalar degrees of freedom.
publishDate 2013
dc.date.none.fl_str_mv 2013
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/2445/131791
url https://hdl.handle.net/2445/131791
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.88.071102
Physical Review D, 2013, vol. 88, num. 7, p. 071102(R)
https://doi.org/10.1103/PhysRevD.88.071102
dc.rights.none.fl_str_mv (c) American Physical Society, 2013
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Physical Society, 2013
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 15.301603

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