Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV

Detalhes bibliográficos
Autor(a) principal: Sirunyan, A. M.
Data de Publicação: 2020
Outros Autores: Silveira, Gustavo Gil da, CMS Collaboration
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/211700
Resumo: A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125GeV Higgs boson h and a Z boson. The h boson is specifically targeted in its decay into a pair of tau leptons, while the Z boson decays into a pair of electrons or muons. A data sample of proton-proton collisions collected by the CMS experiment at the LHC at √s = 13TeV is used, corresponding to an integrated luminosity of 35.9fb−1. No excess above the standard model background expectations is observed in data. A model-independent upper limit is set on the product of the gluon fusion production cross section for the A boson and the branching fraction to Zh → llττ. The observed upper limit at 95% confidence level ranges from 27 to 5fb for A boson masses from 220 to 400GeV, respectively. The results are used to constrain the extended Higgs sector parameters for two benchmark scenarios of the minimal supersymmetric standard model.
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spelling Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2020-07-10T03:41:59Z20201029-8479http://hdl.handle.net/10183/211700001115016A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125GeV Higgs boson h and a Z boson. The h boson is specifically targeted in its decay into a pair of tau leptons, while the Z boson decays into a pair of electrons or muons. A data sample of proton-proton collisions collected by the CMS experiment at the LHC at √s = 13TeV is used, corresponding to an integrated luminosity of 35.9fb−1. No excess above the standard model background expectations is observed in data. A model-independent upper limit is set on the product of the gluon fusion production cross section for the A boson and the branching fraction to Zh → llττ. The observed upper limit at 95% confidence level ranges from 27 to 5fb for A boson masses from 220 to 400GeV, respectively. The results are used to constrain the extended Higgs sector parameters for two benchmark scenarios of the minimal supersymmetric standard model.application/pdfengThe journal of high energy physics. Trieste. No. 3 (Mar. 2020), 65, 46 p.Aceleradores de partículasBosons de higgsHadron-Hadron scattering (experiments)Higgs physicsSearch for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeVEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001115016.pdf.txt001115016.pdf.txtExtracted Texttext/plain125353http://www.lume.ufrgs.br/bitstream/10183/211700/2/001115016.pdf.txt3550dc293e92450be3af80ab018bedfcMD52ORIGINAL001115016.pdfTexto completo (inglês)application/pdf723747http://www.lume.ufrgs.br/bitstream/10183/211700/1/001115016.pdf023f2e7498549c98f903a74d3b869e5dMD5110183/2117002023-07-22 03:41:06.801398oai:www.lume.ufrgs.br:10183/211700Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-22T06:41:06Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV
title Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV
spellingShingle Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV
Sirunyan, A. M.
Aceleradores de partículas
Bosons de higgs
Hadron-Hadron scattering (experiments)
Higgs physics
title_short Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV
title_full Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV
title_fullStr Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV
title_full_unstemmed Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV
title_sort Search for a heavy pseudoscalar Higgs boson decaying into a 125 GeV Higgs boson and a Z boson in final states with two tau and two light leptons at √s = 13 TeV
author Sirunyan, A. M.
author_facet Sirunyan, A. M.
Silveira, Gustavo Gil da
CMS Collaboration
author_role author
author2 Silveira, Gustavo Gil da
CMS Collaboration
author2_role author
author
dc.contributor.author.fl_str_mv Sirunyan, A. M.
Silveira, Gustavo Gil da
CMS Collaboration
dc.subject.por.fl_str_mv Aceleradores de partículas
Bosons de higgs
topic Aceleradores de partículas
Bosons de higgs
Hadron-Hadron scattering (experiments)
Higgs physics
dc.subject.eng.fl_str_mv Hadron-Hadron scattering (experiments)
Higgs physics
description A search is performed for a pseudoscalar Higgs boson, A, decaying into a 125GeV Higgs boson h and a Z boson. The h boson is specifically targeted in its decay into a pair of tau leptons, while the Z boson decays into a pair of electrons or muons. A data sample of proton-proton collisions collected by the CMS experiment at the LHC at √s = 13TeV is used, corresponding to an integrated luminosity of 35.9fb−1. No excess above the standard model background expectations is observed in data. A model-independent upper limit is set on the product of the gluon fusion production cross section for the A boson and the branching fraction to Zh → llττ. The observed upper limit at 95% confidence level ranges from 27 to 5fb for A boson masses from 220 to 400GeV, respectively. The results are used to constrain the extended Higgs sector parameters for two benchmark scenarios of the minimal supersymmetric standard model.
publishDate 2020
dc.date.accessioned.fl_str_mv 2020-07-10T03:41:59Z
dc.date.issued.fl_str_mv 2020
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/211700
dc.identifier.issn.pt_BR.fl_str_mv 1029-8479
dc.identifier.nrb.pt_BR.fl_str_mv 001115016
identifier_str_mv 1029-8479
001115016
url http://hdl.handle.net/10183/211700
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv The journal of high energy physics. Trieste. No. 3 (Mar. 2020), 65, 46 p.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
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instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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