Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/181951 |
Resumo: | A search is presented for the associated production of a Higgs boson with a top quark pair in the all-jet nal state. Events containing seven or more jets are selected from a sample of proton-proton collisions at ps = 13TeV collected with the CMS detector at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb1. To separate the t tH signal from the irreducible t t + b b background, the analysis assigns leading order matrix element signal and background probability densities to each event. A likelihoodratio statistic based on these probability densities is used to extract the signal. The results are provided in terms of an observed t tH signal strength relative to the standard model production cross section = = SM, assuming a Higgs boson mass of 125 GeV. The best t value is ^ = 0:9 0:7(stat) 1:3(syst) = 0:9 1:5 (tot), and the observed and expected upper limits are, respectively, < 3:8 and < 3:1 at 95% con dence levels. |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2018-09-14T02:29:24Z20181029-8479http://hdl.handle.net/10183/181951001072354A search is presented for the associated production of a Higgs boson with a top quark pair in the all-jet nal state. Events containing seven or more jets are selected from a sample of proton-proton collisions at ps = 13TeV collected with the CMS detector at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb1. To separate the t tH signal from the irreducible t t + b b background, the analysis assigns leading order matrix element signal and background probability densities to each event. A likelihoodratio statistic based on these probability densities is used to extract the signal. The results are provided in terms of an observed t tH signal strength relative to the standard model production cross section = = SM, assuming a Higgs boson mass of 125 GeV. The best t value is ^ = 0:9 0:7(stat) 1:3(syst) = 0:9 1:5 (tot), and the observed and expected upper limits are, respectively, < 3:8 and < 3:1 at 95% con dence levels.application/pdfengThe journal of high energy physics. Trieste. No. 6 (June 2018), 101, 45 p.Bosons de higgsAceleradores de partículasColisões proton-protonHadron-Hadron scattering (experiments)Higgs physicsTop physicsSearch for tt¯H production in the all-jet 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:UFRGSORIGINAL001072354.pdfTexto completo (inglês)application/pdf1447782http://www.lume.ufrgs.br/bitstream/10183/181951/1/001072354.pdf2e7f7428a4e148ad07f3b85456077211MD51TEXT001072354.pdf.txt001072354.pdf.txtExtracted Texttext/plain121736http://www.lume.ufrgs.br/bitstream/10183/181951/2/001072354.pdf.txt0fca3af18c79bd295e0eee31c290d648MD52THUMBNAIL001072354.pdf.jpg001072354.pdf.jpgGenerated Thumbnailimage/jpeg1391http://www.lume.ufrgs.br/bitstream/10183/181951/3/001072354.pdf.jpgc0ae78be9873ceec8197435f3663b12cMD5310183/1819512023-08-05 03:38:59.609503oai:www.lume.ufrgs.br:10183/181951Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-05T06:38:59Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV |
title |
Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV |
spellingShingle |
Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV Sirunyan, A. M. Bosons de higgs Aceleradores de partículas Colisões proton-proton Hadron-Hadron scattering (experiments) Higgs physics Top physics |
title_short |
Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV |
title_full |
Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV |
title_fullStr |
Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV |
title_full_unstemmed |
Search for tt¯H production in the all-jet final state in proton-proton collisions at √s = 13 TeV |
title_sort |
Search for tt¯H production in the all-jet final state 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 |
Bosons de higgs Aceleradores de partículas Colisões proton-proton |
topic |
Bosons de higgs Aceleradores de partículas Colisões proton-proton Hadron-Hadron scattering (experiments) Higgs physics Top physics |
dc.subject.eng.fl_str_mv |
Hadron-Hadron scattering (experiments) Higgs physics Top physics |
description |
A search is presented for the associated production of a Higgs boson with a top quark pair in the all-jet nal state. Events containing seven or more jets are selected from a sample of proton-proton collisions at ps = 13TeV collected with the CMS detector at the LHC in 2016, corresponding to an integrated luminosity of 35.9 fb1. To separate the t tH signal from the irreducible t t + b b background, the analysis assigns leading order matrix element signal and background probability densities to each event. A likelihoodratio statistic based on these probability densities is used to extract the signal. The results are provided in terms of an observed t tH signal strength relative to the standard model production cross section = = SM, assuming a Higgs boson mass of 125 GeV. The best t value is ^ = 0:9 0:7(stat) 1:3(syst) = 0:9 1:5 (tot), and the observed and expected upper limits are, respectively, < 3:8 and < 3:1 at 95% con dence levels. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-09-14T02:29:24Z |
dc.date.issued.fl_str_mv |
2018 |
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/10183/181951 |
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1029-8479 |
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001072354 |
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http://hdl.handle.net/10183/181951 |
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 2018), 101, 45 p. |
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openAccess |
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application/pdf |
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