Measurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeV

Detalhes bibliográficos
Autor(a) principal: Sirunyan, A. M.
Data de Publicação: 2018
Outros Autores: Silveira, Gustavo Gil da, CMS Collaboration
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/194872
Resumo: The mass of the top quark is measured using a sample of tt events collected by the CMS detector using proton-proton collisions at √ s = 13 TeV at the CERN LHC. Events are selected with one isolated muon or electron and at least four jets from data corresponding to an integrated luminosity of 35.9 fb−1. For each event the mass is reconstructed from a kinematic fit of the decay products to a tt hypothesis. Using the ideogram method, the top quark mass is determined simultaneously with an overall jet energy scale factor (JSF), constrained by the mass of the W boson in qq decays. The measurement is calibrated on samples simulated at next-to-leading order matched to a leadingorder parton shower. The top quark mass is found to be 172.25±0.08 (stat+JSF)±0.62 (syst) GeV. The dependence of this result on the kinematic properties of the event is studied and compared to predictions of different models of tt production, and no indications of a bias in the measurements are observed.
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spelling Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2019-06-01T02:39:25Z20181434-6044http://hdl.handle.net/10183/194872001091435The mass of the top quark is measured using a sample of tt events collected by the CMS detector using proton-proton collisions at √ s = 13 TeV at the CERN LHC. Events are selected with one isolated muon or electron and at least four jets from data corresponding to an integrated luminosity of 35.9 fb−1. For each event the mass is reconstructed from a kinematic fit of the decay products to a tt hypothesis. Using the ideogram method, the top quark mass is determined simultaneously with an overall jet energy scale factor (JSF), constrained by the mass of the W boson in qq decays. The measurement is calibrated on samples simulated at next-to-leading order matched to a leadingorder parton shower. The top quark mass is found to be 172.25±0.08 (stat+JSF)±0.62 (syst) GeV. The dependence of this result on the kinematic properties of the event is studied and compared to predictions of different models of tt production, and no indications of a bias in the measurements are observed.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 78, no. 11 (Nov. 2018), 891, 27 p.Aceleradores de partículasColisões proton-protonQuarksMeasurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeVEstrangeiroinfo: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:UFRGSTEXT001091435.pdf.txt001091435.pdf.txtExtracted Texttext/plain109706http://www.lume.ufrgs.br/bitstream/10183/194872/2/001091435.pdf.txt2404933ecf87b072b9a3183f014a8afcMD52ORIGINAL001091435.pdfTexto completo (inglês)application/pdf755629http://www.lume.ufrgs.br/bitstream/10183/194872/1/001091435.pdf18350621fb2b3452e5f34fb9cf2beb28MD5110183/1948722023-08-05 03:37:42.841194oai:www.lume.ufrgs.br:10183/194872Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-05T06:37:42Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Measurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeV
title Measurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeV
spellingShingle Measurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeV
Sirunyan, A. M.
Aceleradores de partículas
Colisões proton-proton
Quarks
title_short Measurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeV
title_full Measurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeV
title_fullStr Measurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeV
title_full_unstemmed Measurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeV
title_sort Measurement of the top quark mass with lepton+jets final states using pp collisions at √s = 13TeV
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
Quarks
topic Aceleradores de partículas
Colisões proton-proton
Quarks
description The mass of the top quark is measured using a sample of tt events collected by the CMS detector using proton-proton collisions at √ s = 13 TeV at the CERN LHC. Events are selected with one isolated muon or electron and at least four jets from data corresponding to an integrated luminosity of 35.9 fb−1. For each event the mass is reconstructed from a kinematic fit of the decay products to a tt hypothesis. Using the ideogram method, the top quark mass is determined simultaneously with an overall jet energy scale factor (JSF), constrained by the mass of the W boson in qq decays. The measurement is calibrated on samples simulated at next-to-leading order matched to a leadingorder parton shower. The top quark mass is found to be 172.25±0.08 (stat+JSF)±0.62 (syst) GeV. The dependence of this result on the kinematic properties of the event is studied and compared to predictions of different models of tt production, and no indications of a bias in the measurements are observed.
publishDate 2018
dc.date.issued.fl_str_mv 2018
dc.date.accessioned.fl_str_mv 2019-06-01T02:39:25Z
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/194872
dc.identifier.issn.pt_BR.fl_str_mv 1434-6044
dc.identifier.nrb.pt_BR.fl_str_mv 001091435
identifier_str_mv 1434-6044
001091435
url http://hdl.handle.net/10183/194872
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. 78, no. 11 (Nov. 2018), 891, 27 p.
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eu_rights_str_mv openAccess
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institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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