Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at √s = 13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/270387 |
Resumo: | The first search for nonresonant production of Higgs boson pairs (HH) with one H decaying into four leptons and the other into a pair of b quarks is presented, using proton-proton collisions recorded at a center-of-mass energy of √ s = 13 TeV by the CMS experiment. The analyzed data correspond to an integrated luminosity of 138 fb−1 . A 95% confidence level upper limit of 32.4 is set on the signal strength modifier µ, defined as the ratio of the observed HH production rate in the HH → ZZ∗ bb → 4`bb decay channel to the standard model (SM) expectation. Possible modifications of the H trilinear coupling λHHH with respect to the SM value are investigated. The coupling modifier κλ, defined as λHHH divided by its SM prediction, is constrained to be within the observed (expected) range −8.8 (−9.8) < κλ < 13.4 (15.0) at 95% confidence level. |
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Tumasyan, ArmenSilveira, Gustavo Gil daBernardes, César AugustoCMS Collaboration2023-12-19T03:25:24Z20231029-8479http://hdl.handle.net/10183/270387001186844The first search for nonresonant production of Higgs boson pairs (HH) with one H decaying into four leptons and the other into a pair of b quarks is presented, using proton-proton collisions recorded at a center-of-mass energy of √ s = 13 TeV by the CMS experiment. The analyzed data correspond to an integrated luminosity of 138 fb−1 . A 95% confidence level upper limit of 32.4 is set on the signal strength modifier µ, defined as the ratio of the observed HH production rate in the HH → ZZ∗ bb → 4`bb decay channel to the standard model (SM) expectation. Possible modifications of the H trilinear coupling λHHH with respect to the SM value are investigated. The coupling modifier κλ, defined as λHHH divided by its SM prediction, is constrained to be within the observed (expected) range −8.8 (−9.8) < κλ < 13.4 (15.0) at 95% confidence level.application/pdfengThe journal of high energy physics. Trieste. No. 6 (June 2023), 130, 40 p.Aceleradores de partículasBosons de higgsColisões proton-protonHadron-Hadron scatteringHiggs PhysicsSearch for nonresonant Higgs boson pair production in the four leptons plus twob jets final state 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:UFRGSTEXT001186844.pdf.txt001186844.pdf.txtExtracted Texttext/plain101233http://www.lume.ufrgs.br/bitstream/10183/270387/2/001186844.pdf.txtd73731d11b432a921c2af4022a73f0d5MD52ORIGINAL001186844.pdfTexto completo (inglês)application/pdf1084077http://www.lume.ufrgs.br/bitstream/10183/270387/1/001186844.pdf9b1fabc4590d667f616f36018dc221cfMD5110183/2703872023-12-20 04:23:21.501959oai:www.lume.ufrgs.br:10183/270387Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-12-20T06:23:21Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at √s = 13 TeV |
title |
Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at √s = 13 TeV |
spellingShingle |
Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at √s = 13 TeV Tumasyan, Armen Aceleradores de partículas Bosons de higgs Colisões proton-proton Hadron-Hadron scattering Higgs Physics |
title_short |
Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at √s = 13 TeV |
title_full |
Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at √s = 13 TeV |
title_fullStr |
Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at √s = 13 TeV |
title_full_unstemmed |
Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at √s = 13 TeV |
title_sort |
Search for nonresonant Higgs boson pair production in the four leptons plus twob jets final state in proton-proton collisions at √s = 13 TeV |
author |
Tumasyan, Armen |
author_facet |
Tumasyan, Armen Silveira, Gustavo Gil da Bernardes, César Augusto CMS Collaboration |
author_role |
author |
author2 |
Silveira, Gustavo Gil da Bernardes, César Augusto CMS Collaboration |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Tumasyan, Armen Silveira, Gustavo Gil da Bernardes, César Augusto CMS Collaboration |
dc.subject.por.fl_str_mv |
Aceleradores de partículas Bosons de higgs Colisões proton-proton |
topic |
Aceleradores de partículas Bosons de higgs Colisões proton-proton Hadron-Hadron scattering Higgs Physics |
dc.subject.eng.fl_str_mv |
Hadron-Hadron scattering Higgs Physics |
description |
The first search for nonresonant production of Higgs boson pairs (HH) with one H decaying into four leptons and the other into a pair of b quarks is presented, using proton-proton collisions recorded at a center-of-mass energy of √ s = 13 TeV by the CMS experiment. The analyzed data correspond to an integrated luminosity of 138 fb−1 . A 95% confidence level upper limit of 32.4 is set on the signal strength modifier µ, defined as the ratio of the observed HH production rate in the HH → ZZ∗ bb → 4`bb decay channel to the standard model (SM) expectation. Possible modifications of the H trilinear coupling λHHH with respect to the SM value are investigated. The coupling modifier κλ, defined as λHHH divided by its SM prediction, is constrained to be within the observed (expected) range −8.8 (−9.8) < κλ < 13.4 (15.0) at 95% confidence level. |
publishDate |
2023 |
dc.date.accessioned.fl_str_mv |
2023-12-19T03:25:24Z |
dc.date.issued.fl_str_mv |
2023 |
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/10183/270387 |
dc.identifier.issn.pt_BR.fl_str_mv |
1029-8479 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001186844 |
identifier_str_mv |
1029-8479 001186844 |
url |
http://hdl.handle.net/10183/270387 |
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. 6 (June 2023), 130, 40 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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