Pseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 TeV

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/10183/204019
Resumo: Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of √sNN=5.44 TeV are presented. The measurements are based on data collected by the CMS experiment at the LHC. The yield of primary charged hadrons produced in xenon-xenon collisions in the pseudorapidity range|η|<3.2 is determined using the silicon pixel detector in the CMS tracking system. For the 5% most central collisions, the charged-hadron pseudorapidity density in the midrapidity region η|<0.5 is found to be 1187±36 (syst), with a negligible statistical uncertainty. The rapidity distribution of charged hadrons is also presented in the range |y|<3.2 and is found to be independent of rapidity around y=0. Existing Monte-Carlo event generators are unable to simultaneously describe both results. Comparisons of charged-hadron multiplicities between xenon-xenon and lead-lead collisions at similar collision energies show that particle production at midrapidity is strongly dependent on the collision geometry in addition to the system size and collision energy.
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spelling Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2019-12-28T04:04:21Z20190370-2693http://hdl.handle.net/10183/204019001109565Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of √sNN=5.44 TeV are presented. The measurements are based on data collected by the CMS experiment at the LHC. The yield of primary charged hadrons produced in xenon-xenon collisions in the pseudorapidity range|η|<3.2 is determined using the silicon pixel detector in the CMS tracking system. For the 5% most central collisions, the charged-hadron pseudorapidity density in the midrapidity region η|<0.5 is found to be 1187±36 (syst), with a negligible statistical uncertainty. The rapidity distribution of charged hadrons is also presented in the range |y|<3.2 and is found to be independent of rapidity around y=0. Existing Monte-Carlo event generators are unable to simultaneously describe both results. Comparisons of charged-hadron multiplicities between xenon-xenon and lead-lead collisions at similar collision energies show that particle production at midrapidity is strongly dependent on the collision geometry in addition to the system size and collision energy.application/pdfengPhysics letters. B. Amsterdam. Vol. 799 (Dec. 2019), p. 1-23Aceleradores de partículasHadronsXenonCMSPhysicsXenon-xenonHadronsMultiplicitySpectraPseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 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:UFRGSTEXT001109565.pdf.txt001109565.pdf.txtExtracted Texttext/plain90996http://www.lume.ufrgs.br/bitstream/10183/204019/2/001109565.pdf.txtf6919d323a176db6568d2e0c38616292MD52ORIGINAL001109565.pdfTexto completo (inglês)application/pdf1550961http://www.lume.ufrgs.br/bitstream/10183/204019/1/001109565.pdf5839ee94374c14b6c458b123cef11ffaMD5110183/2040192023-08-05 03:39:56.974004oai:www.lume.ufrgs.br:10183/204019Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-05T06:39:56Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Pseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 TeV
title Pseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 TeV
spellingShingle Pseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 TeV
Sirunyan, A. M.
Aceleradores de partículas
Hadrons
Xenon
CMS
Physics
Xenon-xenon
Hadrons
Multiplicity
Spectra
title_short Pseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 TeV
title_full Pseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 TeV
title_fullStr Pseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 TeV
title_full_unstemmed Pseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 TeV
title_sort Pseudorapidity distributions of charged hadrons in xenon-xenon collisionsat √sNN=5.44 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 Aceleradores de partículas
Hadrons
Xenon
topic Aceleradores de partículas
Hadrons
Xenon
CMS
Physics
Xenon-xenon
Hadrons
Multiplicity
Spectra
dc.subject.eng.fl_str_mv CMS
Physics
Xenon-xenon
Hadrons
Multiplicity
Spectra
description Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of √sNN=5.44 TeV are presented. The measurements are based on data collected by the CMS experiment at the LHC. The yield of primary charged hadrons produced in xenon-xenon collisions in the pseudorapidity range|η|<3.2 is determined using the silicon pixel detector in the CMS tracking system. For the 5% most central collisions, the charged-hadron pseudorapidity density in the midrapidity region η|<0.5 is found to be 1187±36 (syst), with a negligible statistical uncertainty. The rapidity distribution of charged hadrons is also presented in the range |y|<3.2 and is found to be independent of rapidity around y=0. Existing Monte-Carlo event generators are unable to simultaneously describe both results. Comparisons of charged-hadron multiplicities between xenon-xenon and lead-lead collisions at similar collision energies show that particle production at midrapidity is strongly dependent on the collision geometry in addition to the system size and collision energy.
publishDate 2019
dc.date.accessioned.fl_str_mv 2019-12-28T04:04:21Z
dc.date.issued.fl_str_mv 2019
dc.type.driver.fl_str_mv Estrangeiro
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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/10183/204019
dc.identifier.issn.pt_BR.fl_str_mv 0370-2693
dc.identifier.nrb.pt_BR.fl_str_mv 001109565
identifier_str_mv 0370-2693
001109565
url http://hdl.handle.net/10183/204019
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physics letters. B. Amsterdam. Vol. 799 (Dec. 2019), p. 1-23
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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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