Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state

Detalhes bibliográficos
Autor(a) principal: Sirunyan, A. M.
Data de Publicação: 2019
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/10183/196324
Resumo: A search for a heavyW0 resonance decaying to one B or T vector-like quark and a top or bottom quark, respectively, is presented. The search uses proton-proton collision data collected in 2016 with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb1 at ps = 13TeV. Both decay channels result in a nal state with a top quark, a Higgs boson, and a b quark, each produced with signi cant energy. The all-hadronic decays of both the Higgs boson and the top quark are considered. The nalstate jets, some of which correspond to merged decay products of a boosted top quark and a Higgs boson, are selected using jet substructure techniques, which help to suppress standard model backgrounds. A W0 boson signal would appear as a narrow peak in the invariant mass distribution of these jets. No signi cant deviation in data with respect to the standard model background predictions is observed. Cross section upper limits on W0 boson production in the top quark, Higgs boson, and b quark decay mode are set as a function of the W0 mass, for several vector-like quark mass hypotheses. These are the rst limits for W0 boson production in this decay channel, and cover a range of 0.01 to 0.43 pb in the W0 mass range between 1.5 and 4.0TeV.
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spelling Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2019-06-27T02:36:12Z20191029-8479http://hdl.handle.net/10183/196324001093220A search for a heavyW0 resonance decaying to one B or T vector-like quark and a top or bottom quark, respectively, is presented. The search uses proton-proton collision data collected in 2016 with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb1 at ps = 13TeV. Both decay channels result in a nal state with a top quark, a Higgs boson, and a b quark, each produced with signi cant energy. The all-hadronic decays of both the Higgs boson and the top quark are considered. The nalstate jets, some of which correspond to merged decay products of a boosted top quark and a Higgs boson, are selected using jet substructure techniques, which help to suppress standard model backgrounds. A W0 boson signal would appear as a narrow peak in the invariant mass distribution of these jets. No signi cant deviation in data with respect to the standard model background predictions is observed. Cross section upper limits on W0 boson production in the top quark, Higgs boson, and b quark decay mode are set as a function of the W0 mass, for several vector-like quark mass hypotheses. These are the rst limits for W0 boson production in this decay channel, and cover a range of 0.01 to 0.43 pb in the W0 mass range between 1.5 and 4.0TeV.application/pdfengThe journal of high energy physics. Trieste. No. 3 (Mar. 2019), 127, 39 p.Aceleradores de partículasColisões proton-protonBosons WBeyond standard modelHadron-Hadron scattering (experiments)Vectorlike quarksSearch for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final stateEstrangeiroinfo: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:UFRGSTEXT001093220.pdf.txt001093220.pdf.txtExtracted Texttext/plain100783http://www.lume.ufrgs.br/bitstream/10183/196324/2/001093220.pdf.txt1d76536ce497301d4866f6630844622cMD52ORIGINAL001093220.pdfTexto completo (inglês)application/pdf588378http://www.lume.ufrgs.br/bitstream/10183/196324/1/001093220.pdfeea777b2eade976f7771d3273999bd81MD5110183/1963242023-08-03 03:33:11.501248oai:www.lume.ufrgs.br:10183/196324Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-03T06:33:11Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
spellingShingle Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
Sirunyan, A. M.
Aceleradores de partículas
Colisões proton-proton
Bosons W
Beyond standard model
Hadron-Hadron scattering (experiments)
Vectorlike quarks
title_short Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title_full Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title_fullStr Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title_full_unstemmed Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
title_sort Search for a W' boson decaying to a vector-like quark and a top or bottom quark in the all-jets final state
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
Colisões proton-proton
Bosons W
topic Aceleradores de partículas
Colisões proton-proton
Bosons W
Beyond standard model
Hadron-Hadron scattering (experiments)
Vectorlike quarks
dc.subject.eng.fl_str_mv Beyond standard model
Hadron-Hadron scattering (experiments)
Vectorlike quarks
description A search for a heavyW0 resonance decaying to one B or T vector-like quark and a top or bottom quark, respectively, is presented. The search uses proton-proton collision data collected in 2016 with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb1 at ps = 13TeV. Both decay channels result in a nal state with a top quark, a Higgs boson, and a b quark, each produced with signi cant energy. The all-hadronic decays of both the Higgs boson and the top quark are considered. The nalstate jets, some of which correspond to merged decay products of a boosted top quark and a Higgs boson, are selected using jet substructure techniques, which help to suppress standard model backgrounds. A W0 boson signal would appear as a narrow peak in the invariant mass distribution of these jets. No signi cant deviation in data with respect to the standard model background predictions is observed. Cross section upper limits on W0 boson production in the top quark, Higgs boson, and b quark decay mode are set as a function of the W0 mass, for several vector-like quark mass hypotheses. These are the rst limits for W0 boson production in this decay channel, and cover a range of 0.01 to 0.43 pb in the W0 mass range between 1.5 and 4.0TeV.
publishDate 2019
dc.date.accessioned.fl_str_mv 2019-06-27T02:36:12Z
dc.date.issued.fl_str_mv 2019
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.issn.pt_BR.fl_str_mv 1029-8479
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv The journal of high energy physics. Trieste. No. 3 (Mar. 2019), 127, 39 p.
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