Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/236768 |
Resumo: | Measurements of jet substructure describing the composition of quark- and gluon-initiated jets are presented. Proton-proton (pp) collision data at √s= 13 TeV collected with the CMS detector are used, corresponding to an integrated luminosity of 35.9 fb−1. Generalized angularities are measured that characterize the jet substructure and distinguish quark- and gluon-initiated jets. These observables are sensitive to the distributions of transverse momenta and angular distances within a jet. The analysis is performed using a data sample of dijet events enriched in gluon-initiated jets, and, for the first time, a Z+jet event sample enriched in quark-initiated jets. The observables are measured in bins of jet transverse momentum, and as a function of the jet radius parameter. Each measurement is repeated applying a “soft drop” grooming procedure that removes soft and large angle radiation from the jet. Using these measurements, the ability of various models to describe jet substructure is assessed, showing a clear need for improvements in Monte Carlo generators. |
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Tumasyan, ArmenSilveira, Gustavo Gil daBernardes, César AugustoCMS Collaboration2022-04-07T04:48:54Z20221029-8479http://hdl.handle.net/10183/236768001137785Measurements of jet substructure describing the composition of quark- and gluon-initiated jets are presented. Proton-proton (pp) collision data at √s= 13 TeV collected with the CMS detector are used, corresponding to an integrated luminosity of 35.9 fb−1. Generalized angularities are measured that characterize the jet substructure and distinguish quark- and gluon-initiated jets. These observables are sensitive to the distributions of transverse momenta and angular distances within a jet. The analysis is performed using a data sample of dijet events enriched in gluon-initiated jets, and, for the first time, a Z+jet event sample enriched in quark-initiated jets. The observables are measured in bins of jet transverse momentum, and as a function of the jet radius parameter. Each measurement is repeated applying a “soft drop” grooming procedure that removes soft and large angle radiation from the jet. Using these measurements, the ability of various models to describe jet substructure is assessed, showing a clear need for improvements in Monte Carlo generators.application/pdfengThe journal of high energy physics. Trieste. No. 1 (Jan. 2022), 188, 53 p.Aceleradores de partículasColisões proton-protonHadronsHadron-Hadron scattering (experiments)Jet PhysicsStudy of quark and gluon jet substructure in Z+jet and dijet events from pp collisionsEstrangeiroinfo: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:UFRGSTEXT001137785.pdf.txt001137785.pdf.txtExtracted Texttext/plain144400http://www.lume.ufrgs.br/bitstream/10183/236768/2/001137785.pdf.txt821101df743f4cc8f9fb47cdec79f490MD52ORIGINAL001137785.pdfTexto completo (inglês)application/pdf1092853http://www.lume.ufrgs.br/bitstream/10183/236768/1/001137785.pdf9dee69b78239aa10a979a08eee66873dMD5110183/2367682023-07-08 03:35:02.754769oai:www.lume.ufrgs.br:10183/236768Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-08T06:35:02Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions |
title |
Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions |
spellingShingle |
Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions Tumasyan, Armen Aceleradores de partículas Colisões proton-proton Hadrons Hadron-Hadron scattering (experiments) Jet Physics |
title_short |
Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions |
title_full |
Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions |
title_fullStr |
Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions |
title_full_unstemmed |
Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions |
title_sort |
Study of quark and gluon jet substructure in Z+jet and dijet events from pp collisions |
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 Hadrons |
topic |
Aceleradores de partículas Colisões proton-proton Hadrons Hadron-Hadron scattering (experiments) Jet Physics |
dc.subject.eng.fl_str_mv |
Hadron-Hadron scattering (experiments) Jet Physics |
description |
Measurements of jet substructure describing the composition of quark- and gluon-initiated jets are presented. Proton-proton (pp) collision data at √s= 13 TeV collected with the CMS detector are used, corresponding to an integrated luminosity of 35.9 fb−1. Generalized angularities are measured that characterize the jet substructure and distinguish quark- and gluon-initiated jets. These observables are sensitive to the distributions of transverse momenta and angular distances within a jet. The analysis is performed using a data sample of dijet events enriched in gluon-initiated jets, and, for the first time, a Z+jet event sample enriched in quark-initiated jets. The observables are measured in bins of jet transverse momentum, and as a function of the jet radius parameter. Each measurement is repeated applying a “soft drop” grooming procedure that removes soft and large angle radiation from the jet. Using these measurements, the ability of various models to describe jet substructure is assessed, showing a clear need for improvements in Monte Carlo generators. |
publishDate |
2022 |
dc.date.accessioned.fl_str_mv |
2022-04-07T04:48:54Z |
dc.date.issued.fl_str_mv |
2022 |
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/10183/236768 |
dc.identifier.issn.pt_BR.fl_str_mv |
1029-8479 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001137785 |
identifier_str_mv |
1029-8479 001137785 |
url |
http://hdl.handle.net/10183/236768 |
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. 1 (Jan. 2022), 188, 53 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 |
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UFRGS |
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Repositório Institucional da UFRGS |
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Repositório Institucional da UFRGS |
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