Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s = 13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/235070 |
Resumo: | A search is presented for a heavy vector resonance decaying into a Z boson and the standard model Higgs boson, where the Z boson is identified through its leptonic decays to electrons, muons, or neutrinos, and the Higgs boson is identified through its hadronic decays. The search is performed in a Lorentz-boosted regime and is based on data collected from 2016 to 2018 at the CERN LHC, corresponding to an integrated luminosity of 137fb−1. Upper limits are derived on the production of a narrow heavy resonance Z′, and a mass below 3.5 and 3.7TeV is excluded at 95% confidence level in models where the heavy vector boson couples predominantly to fermions and to bosons, respectively. These are the most stringent limits placed on the Heavy Vector Triplet Z′ model to date. If the heavy vector boson couples exclusively to standard model bosons, upper limits on the product of the cross section and branching fraction are set between 23 and 0.3fb for a Z′ mass between 0.8 and 4.6TeV, respectively. This is the first limit set on a heavy vector boson coupling exclusively to standard model bosons in its production and decay. |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2022-02-12T04:50:56Z20211434-6044http://hdl.handle.net/10183/235070001132003A search is presented for a heavy vector resonance decaying into a Z boson and the standard model Higgs boson, where the Z boson is identified through its leptonic decays to electrons, muons, or neutrinos, and the Higgs boson is identified through its hadronic decays. The search is performed in a Lorentz-boosted regime and is based on data collected from 2016 to 2018 at the CERN LHC, corresponding to an integrated luminosity of 137fb−1. Upper limits are derived on the production of a narrow heavy resonance Z′, and a mass below 3.5 and 3.7TeV is excluded at 95% confidence level in models where the heavy vector boson couples predominantly to fermions and to bosons, respectively. These are the most stringent limits placed on the Heavy Vector Triplet Z′ model to date. If the heavy vector boson couples exclusively to standard model bosons, upper limits on the product of the cross section and branching fraction are set between 23 and 0.3fb for a Z′ mass between 0.8 and 4.6TeV, respectively. This is the first limit set on a heavy vector boson coupling exclusively to standard model bosons in its production and decay.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 81, no. 8 (Aug. 2021), 688, 31 p.Aceleradores de partículasColisões proton-protonBosons de higgsBosons ZSearch for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions 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:UFRGSTEXT001132003.pdf.txt001132003.pdf.txtExtracted Texttext/plain120894http://www.lume.ufrgs.br/bitstream/10183/235070/2/001132003.pdf.txtd2b7987a52a304d905c34cbd68e1f25dMD52ORIGINAL001132003.pdfTexto completo (inglês)application/pdf3900620http://www.lume.ufrgs.br/bitstream/10183/235070/1/001132003.pdfe97115ed207d68941b1ed31e4fe974d8MD5110183/2350702023-07-20 03:35:28.798806oai:www.lume.ufrgs.br:10183/235070Repositório InstitucionalPUBhttps://lume.ufrgs.br/oai/requestlume@ufrgs.bropendoar:2023-07-20T06:35:28Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s = 13 TeV |
title |
Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s = 13 TeV |
spellingShingle |
Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s = 13 TeV Sirunyan, A. M. Aceleradores de partículas Colisões proton-proton Bosons de higgs Bosons Z |
title_short |
Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s = 13 TeV |
title_full |
Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s = 13 TeV |
title_fullStr |
Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s = 13 TeV |
title_full_unstemmed |
Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions at √s = 13 TeV |
title_sort |
Search for a heavy vector resonance decaying to a Z boson and a Higgs boson in proton-proton collisions 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 Colisões proton-proton Bosons de higgs Bosons Z |
topic |
Aceleradores de partículas Colisões proton-proton Bosons de higgs Bosons Z |
description |
A search is presented for a heavy vector resonance decaying into a Z boson and the standard model Higgs boson, where the Z boson is identified through its leptonic decays to electrons, muons, or neutrinos, and the Higgs boson is identified through its hadronic decays. The search is performed in a Lorentz-boosted regime and is based on data collected from 2016 to 2018 at the CERN LHC, corresponding to an integrated luminosity of 137fb−1. Upper limits are derived on the production of a narrow heavy resonance Z′, and a mass below 3.5 and 3.7TeV is excluded at 95% confidence level in models where the heavy vector boson couples predominantly to fermions and to bosons, respectively. These are the most stringent limits placed on the Heavy Vector Triplet Z′ model to date. If the heavy vector boson couples exclusively to standard model bosons, upper limits on the product of the cross section and branching fraction are set between 23 and 0.3fb for a Z′ mass between 0.8 and 4.6TeV, respectively. This is the first limit set on a heavy vector boson coupling exclusively to standard model bosons in its production and decay. |
publishDate |
2021 |
dc.date.issued.fl_str_mv |
2021 |
dc.date.accessioned.fl_str_mv |
2022-02-12T04:50:56Z |
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/10183/235070 |
dc.identifier.issn.pt_BR.fl_str_mv |
1434-6044 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001132003 |
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1434-6044 001132003 |
url |
http://hdl.handle.net/10183/235070 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
The European physical journal. C, Particles and fields. Berlin. Vol. 81, no. 8 (Aug. 2021), 688, 31 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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