Charged-particle angular correlations in XeXe collisions at √sNN=5.44 TeV
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/203787 |
Resumo: | Azimuthal correlations of charged particles in xenon-xenon collisions at a center-of-mass energy per nucleon pair of √sNN=5.44 TeV are studied. The data were collected by the CMS experiment at the LHC with a total integrated luminosity of 3.42μb−1. The collective motion of the system formed in the collision is parametrized by a Fourier expansion of the azimuthal particle density distribution. The azimuthal anisotropy coefficients v2, v3, and v4 are obtained by the scalar-product, two-particle correlation, and multiparticle correlation methods. Within a hydrodynamic picture, these methods have different sensitivities to noncollective and fluctuation effects. The dependence of the Fourier coefficients on the size of the colliding system is explored by comparing the xenon-xenon results with equivalent lead-lead data. Model calculations that include initial-state fluctuation effects are also compared to the experimental results. The observed angular correlations provide new constraints on the hydrodynamic description of heavy ion collisions |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2019-12-27T04:02:55Z20190556-2813http://hdl.handle.net/10183/203787001105801Azimuthal correlations of charged particles in xenon-xenon collisions at a center-of-mass energy per nucleon pair of √sNN=5.44 TeV are studied. The data were collected by the CMS experiment at the LHC with a total integrated luminosity of 3.42μb−1. The collective motion of the system formed in the collision is parametrized by a Fourier expansion of the azimuthal particle density distribution. The azimuthal anisotropy coefficients v2, v3, and v4 are obtained by the scalar-product, two-particle correlation, and multiparticle correlation methods. Within a hydrodynamic picture, these methods have different sensitivities to noncollective and fluctuation effects. The dependence of the Fourier coefficients on the size of the colliding system is explored by comparing the xenon-xenon results with equivalent lead-lead data. Model calculations that include initial-state fluctuation effects are also compared to the experimental results. The observed angular correlations provide new constraints on the hydrodynamic description of heavy ion collisionsapplication/pdfengPhysical review. C, Nuclear physics. Melville. Vol. 100, no. 4 (Oct. 2019), 044902, 22 p.Colisao de particulasAceleradores de partículasXenonCharged-particle angular correlations in XeXe collisions at √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:UFRGSTEXT001105801.pdf.txt001105801.pdf.txtExtracted Texttext/plain106247http://www.lume.ufrgs.br/bitstream/10183/203787/2/001105801.pdf.txt49931dbf72a307ae846ca6d38bb60db4MD52ORIGINAL001105801.pdfTexto completo (inglês)application/pdf1398327http://www.lume.ufrgs.br/bitstream/10183/203787/1/001105801.pdff8276a0a76c8919fe46317cac3f2020fMD5110183/2037872023-08-05 03:38:16.397886oai:www.lume.ufrgs.br:10183/203787Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-05T06:38:16Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Charged-particle angular correlations in XeXe collisions at √sNN=5.44 TeV |
title |
Charged-particle angular correlations in XeXe collisions at √sNN=5.44 TeV |
spellingShingle |
Charged-particle angular correlations in XeXe collisions at √sNN=5.44 TeV Sirunyan, A. M. Colisao de particulas Aceleradores de partículas Xenon |
title_short |
Charged-particle angular correlations in XeXe collisions at √sNN=5.44 TeV |
title_full |
Charged-particle angular correlations in XeXe collisions at √sNN=5.44 TeV |
title_fullStr |
Charged-particle angular correlations in XeXe collisions at √sNN=5.44 TeV |
title_full_unstemmed |
Charged-particle angular correlations in XeXe collisions at √sNN=5.44 TeV |
title_sort |
Charged-particle angular correlations in XeXe collisions at √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 |
Colisao de particulas Aceleradores de partículas Xenon |
topic |
Colisao de particulas Aceleradores de partículas Xenon |
description |
Azimuthal correlations of charged particles in xenon-xenon collisions at a center-of-mass energy per nucleon pair of √sNN=5.44 TeV are studied. The data were collected by the CMS experiment at the LHC with a total integrated luminosity of 3.42μb−1. The collective motion of the system formed in the collision is parametrized by a Fourier expansion of the azimuthal particle density distribution. The azimuthal anisotropy coefficients v2, v3, and v4 are obtained by the scalar-product, two-particle correlation, and multiparticle correlation methods. Within a hydrodynamic picture, these methods have different sensitivities to noncollective and fluctuation effects. The dependence of the Fourier coefficients on the size of the colliding system is explored by comparing the xenon-xenon results with equivalent lead-lead data. Model calculations that include initial-state fluctuation effects are also compared to the experimental results. The observed angular correlations provide new constraints on the hydrodynamic description of heavy ion collisions |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-12-27T04:02:55Z |
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/10183/203787 |
dc.identifier.issn.pt_BR.fl_str_mv |
0556-2813 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001105801 |
identifier_str_mv |
0556-2813 001105801 |
url |
http://hdl.handle.net/10183/203787 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review. C, Nuclear physics. Melville. Vol. 100, no. 4 (Oct. 2019), 044902, 22 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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