Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from 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/10183/236797 |
Resumo: | Measurements of differential and double-differential cross sections of top-quark pair (t¯t) production are presented in the lepton þ jets channels with a single electron or muon and jets in the final state. The analysis combines for the first time signatures of top quarks with low transverse momentum pT, where the top-quark decay products can be identified as separated jets and isolated leptons, and with high pT, where the decay products are collimated and overlap. The measurements are based on proton-proton collision data at ffiffi s p ¼ 13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 137 fb−1. The cross sections are presented at the parton and particle levels, where the latter minimizes extrapolations based on theoretical assumptions. Most of the measured differential cross sections are well described by standard model predictions with the exception of some double-differential distributions. The inclusive t¯t production cross section is measured to be σt¯t ¼ 791 25 pb, which constitutes the most precise measurement in the lepton þ jets channel to date. |
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Tumasyan, ArmenSilveira, Gustavo Gil daBernardes, César AugustoCMS Collaboration2022-04-07T04:49:16Z20210556-2821http://hdl.handle.net/10183/236797001137179Measurements of differential and double-differential cross sections of top-quark pair (t¯t) production are presented in the lepton þ jets channels with a single electron or muon and jets in the final state. The analysis combines for the first time signatures of top quarks with low transverse momentum pT, where the top-quark decay products can be identified as separated jets and isolated leptons, and with high pT, where the decay products are collimated and overlap. The measurements are based on proton-proton collision data at ffiffi s p ¼ 13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 137 fb−1. The cross sections are presented at the parton and particle levels, where the latter minimizes extrapolations based on theoretical assumptions. Most of the measured differential cross sections are well described by standard model predictions with the exception of some double-differential distributions. The inclusive t¯t production cross section is measured to be σt¯t ¼ 791 25 pb, which constitutes the most precise measurement in the lepton þ jets channel to date.application/pdfengPhysical Review. D, Particles and fields. Woodbury. Vol. 104, no. 9 (Nov. 2021), 092013, 93 p.Aceleradores de partículasColisões proton-protonMeasurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from 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:UFRGSTEXT001137179.pdf.txt001137179.pdf.txtExtracted Texttext/plain293680http://www.lume.ufrgs.br/bitstream/10183/236797/2/001137179.pdf.txt3c6633f2766df5c93e3cb3a851705295MD52ORIGINAL001137179.pdfTexto completo (inglês)application/pdf5558008http://www.lume.ufrgs.br/bitstream/10183/236797/1/001137179.pdfedacf4dd9f8783c344b7b44feadf92c4MD5110183/2367972023-07-08 03:35:42.867951oai:www.lume.ufrgs.br:10183/236797Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-08T06:35:42Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from proton-proton collisions at √s=13 TeV |
title |
Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from proton-proton collisions at √s=13 TeV |
spellingShingle |
Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from proton-proton collisions at √s=13 TeV Tumasyan, Armen Aceleradores de partículas Colisões proton-proton |
title_short |
Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from proton-proton collisions at √s=13 TeV |
title_full |
Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from proton-proton collisions at √s=13 TeV |
title_fullStr |
Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from proton-proton collisions at √s=13 TeV |
title_full_unstemmed |
Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from proton-proton collisions at √s=13 TeV |
title_sort |
Measurement of differential t¯t production cross sections in the full kinematic range using lepton + jets events from 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 Colisões proton-proton |
topic |
Aceleradores de partículas Colisões proton-proton |
description |
Measurements of differential and double-differential cross sections of top-quark pair (t¯t) production are presented in the lepton þ jets channels with a single electron or muon and jets in the final state. The analysis combines for the first time signatures of top quarks with low transverse momentum pT, where the top-quark decay products can be identified as separated jets and isolated leptons, and with high pT, where the decay products are collimated and overlap. The measurements are based on proton-proton collision data at ffiffi s p ¼ 13 TeV collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 137 fb−1. The cross sections are presented at the parton and particle levels, where the latter minimizes extrapolations based on theoretical assumptions. Most of the measured differential cross sections are well described by standard model predictions with the exception of some double-differential distributions. The inclusive t¯t production cross section is measured to be σt¯t ¼ 791 25 pb, which constitutes the most precise measurement in the lepton þ jets channel to date. |
publishDate |
2021 |
dc.date.issued.fl_str_mv |
2021 |
dc.date.accessioned.fl_str_mv |
2022-04-07T04:49:16Z |
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/10183/236797 |
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0556-2821 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001137179 |
identifier_str_mv |
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url |
http://hdl.handle.net/10183/236797 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical Review. D, Particles and fields. Woodbury. Vol. 104, no. 9 (Nov. 2021), 092013, 93 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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