Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s = 13 TeV
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/217939 |
Resumo: | A measurement of the Higgs boson Yukawa coupling to the top quark is presented using proton-proton collision data at ffiffi s p ¼ 13 TeV, corresponding to an integrated luminosity of 137 fb−1, recorded with the CMS detector. The coupling strength with respect to the standard model value, Yt, is determined from kinematic distributions in t¯t final states containing ee, μμ, or eμ pairs. Variations of the Yukawa coupling strength lead to modified distributions for t¯t production. In particular, the distributions of the mass of the t¯t system and the rapidity difference of the top quark and antiquark are sensitive to the value of Yt. The measurement yields a best fit value of Yt ¼ 1.16þ0.24 −0.35 , bounding Yt < 1.54 at a 95% confidence level. |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2021-02-12T04:06:33Z20201550-7998http://hdl.handle.net/10183/217939001121216A measurement of the Higgs boson Yukawa coupling to the top quark is presented using proton-proton collision data at ffiffi s p ¼ 13 TeV, corresponding to an integrated luminosity of 137 fb−1, recorded with the CMS detector. The coupling strength with respect to the standard model value, Yt, is determined from kinematic distributions in t¯t final states containing ee, μμ, or eμ pairs. Variations of the Yukawa coupling strength lead to modified distributions for t¯t production. In particular, the distributions of the mass of the t¯t system and the rapidity difference of the top quark and antiquark are sensitive to the value of Yt. The measurement yields a best fit value of Yt ¼ 1.16þ0.24 −0.35 , bounding Yt < 1.54 at a 95% confidence level.application/pdfengPhysical review. D, Particles, fields, gravitation, and cosmology. College Park. Vol. 102, no. 9 (Nov. 2020), 092013, 29 p.Colisões proton-protonAceleradores de partículasMeasurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton 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:UFRGSTEXT001121216.pdf.txt001121216.pdf.txtExtracted Texttext/plain135319http://www.lume.ufrgs.br/bitstream/10183/217939/2/001121216.pdf.txtc88c8f1963901922d1f73d2c5ac6982bMD52ORIGINAL001121216.pdfTexto completo (inglês)application/pdf1098848http://www.lume.ufrgs.br/bitstream/10183/217939/1/001121216.pdf063071140fbf20c3f52cb89d4d48117eMD5110183/2179392023-07-22 03:41:00.360574oai:www.lume.ufrgs.br:10183/217939Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-22T06:41Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s = 13 TeV |
title |
Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s = 13 TeV |
spellingShingle |
Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s = 13 TeV Sirunyan, A. M. Colisões proton-proton Aceleradores de partículas |
title_short |
Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s = 13 TeV |
title_full |
Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s = 13 TeV |
title_fullStr |
Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s = 13 TeV |
title_full_unstemmed |
Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton final state in proton-proton collisions at √s = 13 TeV |
title_sort |
Measurement of the top quark Yukawa coupling from t¯t kinematic distributions in the dilepton 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 |
Colisões proton-proton Aceleradores de partículas |
topic |
Colisões proton-proton Aceleradores de partículas |
description |
A measurement of the Higgs boson Yukawa coupling to the top quark is presented using proton-proton collision data at ffiffi s p ¼ 13 TeV, corresponding to an integrated luminosity of 137 fb−1, recorded with the CMS detector. The coupling strength with respect to the standard model value, Yt, is determined from kinematic distributions in t¯t final states containing ee, μμ, or eμ pairs. Variations of the Yukawa coupling strength lead to modified distributions for t¯t production. In particular, the distributions of the mass of the t¯t system and the rapidity difference of the top quark and antiquark are sensitive to the value of Yt. The measurement yields a best fit value of Yt ¼ 1.16þ0.24 −0.35 , bounding Yt < 1.54 at a 95% confidence level. |
publishDate |
2020 |
dc.date.issued.fl_str_mv |
2020 |
dc.date.accessioned.fl_str_mv |
2021-02-12T04:06:33Z |
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/10183/217939 |
dc.identifier.issn.pt_BR.fl_str_mv |
1550-7998 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001121216 |
identifier_str_mv |
1550-7998 001121216 |
url |
http://hdl.handle.net/10183/217939 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review. D, Particles, fields, gravitation, and cosmology. College Park. Vol. 102, no. 9 (Nov. 2020), 092013, 29 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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