Measurement of the top quark mass in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channel

Detalhes bibliográficos
Autor(a) principal: Sirunyan, A. M.
Data de Publicação: 2019
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/10183/196340
Resumo: A top quark mass measurement is performed using 35.9 fb−1 of LHC proton–proton collision data collected with the CMS detector at √ s = 13 TeV. The measurement uses the tt all-jets final state. A kinematic fit is performed to reconstruct the decay of the tt system and suppress themultijet background. Using the ideogram method, the top quark mass (mt) is determined, simultaneously constraining an additional jet energy scale factor (JSF). The resulting value of mt = 172.34 ± 0.20 (stat+JSF) ± 0.70 (syst) GeV is in good agreement with previous measurements. In addition, a combined measurement that uses the tt lepton+jets and all-jets final states is presented, using the same mass extraction method, and provides an mt measurement of 172.26 ± 0.07 (stat+JSF) ± 0.61 (syst) GeV. This is the first combined mt extraction from the lepton+jets and all-jets channels through a single likelihood function.
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spelling Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2019-06-27T02:36:35Z20191434-6044http://hdl.handle.net/10183/196340001093967A top quark mass measurement is performed using 35.9 fb−1 of LHC proton–proton collision data collected with the CMS detector at √ s = 13 TeV. The measurement uses the tt all-jets final state. A kinematic fit is performed to reconstruct the decay of the tt system and suppress themultijet background. Using the ideogram method, the top quark mass (mt) is determined, simultaneously constraining an additional jet energy scale factor (JSF). The resulting value of mt = 172.34 ± 0.20 (stat+JSF) ± 0.70 (syst) GeV is in good agreement with previous measurements. In addition, a combined measurement that uses the tt lepton+jets and all-jets final states is presented, using the same mass extraction method, and provides an mt measurement of 172.26 ± 0.07 (stat+JSF) ± 0.61 (syst) GeV. This is the first combined mt extraction from the lepton+jets and all-jets channels through a single likelihood function.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 79, no. 4 (Apr. 2019), 313, 27 p.Aceleradores de partículasColisao de ions pesadosQuarksMeasurement of the top quark mass in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channelEstrangeiroinfo: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:UFRGSTEXT001093967.pdf.txt001093967.pdf.txtExtracted Texttext/plain105351http://www.lume.ufrgs.br/bitstream/10183/196340/2/001093967.pdf.txt356659d937b826228bd70192724548b7MD52ORIGINAL001093967.pdfTexto completo (inglês)application/pdf726420http://www.lume.ufrgs.br/bitstream/10183/196340/1/001093967.pdf71234bc00dc8f16cdb2f802de7d8fb0bMD5110183/1963402023-08-04 03:34:46.530436oai:www.lume.ufrgs.br:10183/196340Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-04T06:34:46Repositório 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 in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channel
title Measurement of the top quark mass in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channel
spellingShingle Measurement of the top quark mass in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channel
Sirunyan, A. M.
Aceleradores de partículas
Colisao de ions pesados
Quarks
title_short Measurement of the top quark mass in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channel
title_full Measurement of the top quark mass in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channel
title_fullStr Measurement of the top quark mass in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channel
title_full_unstemmed Measurement of the top quark mass in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channel
title_sort Measurement of the top quark mass in the all-jets final state at √s = 13 TeV and combination with the lepton+jets channel
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
Colisao de ions pesados
Quarks
topic Aceleradores de partículas
Colisao de ions pesados
Quarks
description A top quark mass measurement is performed using 35.9 fb−1 of LHC proton–proton collision data collected with the CMS detector at √ s = 13 TeV. The measurement uses the tt all-jets final state. A kinematic fit is performed to reconstruct the decay of the tt system and suppress themultijet background. Using the ideogram method, the top quark mass (mt) is determined, simultaneously constraining an additional jet energy scale factor (JSF). The resulting value of mt = 172.34 ± 0.20 (stat+JSF) ± 0.70 (syst) GeV is in good agreement with previous measurements. In addition, a combined measurement that uses the tt lepton+jets and all-jets final states is presented, using the same mass extraction method, and provides an mt measurement of 172.26 ± 0.07 (stat+JSF) ± 0.61 (syst) GeV. This is the first combined mt extraction from the lepton+jets and all-jets channels through a single likelihood function.
publishDate 2019
dc.date.accessioned.fl_str_mv 2019-06-27T02:36:35Z
dc.date.issued.fl_str_mv 2019
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/10183/196340
dc.identifier.issn.pt_BR.fl_str_mv 1434-6044
dc.identifier.nrb.pt_BR.fl_str_mv 001093967
identifier_str_mv 1434-6044
001093967
url http://hdl.handle.net/10183/196340
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. 79, no. 4 (Apr. 2019), 313, 27 p.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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