Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 TeV
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/212764 |
Resumo: | Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as collective anisotropic flow. Fourier harmonic decomposition is used to quantify these anisotropies. The higher-order harmonics can be induced by the same order anisotropies (linear response) or by the combined influence of several lower order anisotropies (nonlinear response) in the initial state. The mixed higherorder anisotropic flow and nonlinear response coefficients of charged particles are measured as functions of transverse momentum and centrality in PbPb collisions at nucleonnucleon center-of-mass energies √sNN = 2.76 and 5.02 TeV with the CMS detector. The results are compared with viscous hydrodynamic calculations using several different initial conditions, as well as microscopic transport model calculations. None of the models provides a simultaneous description of the mixed higher-order flow harmonics and nonlinear response coefficients. |
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Sirunyan, A. M.Silveira, Gustavo Gil daCMS Collaboration2020-08-08T03:46:18Z20201434-6044http://hdl.handle.net/10183/212764001116392Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as collective anisotropic flow. Fourier harmonic decomposition is used to quantify these anisotropies. The higher-order harmonics can be induced by the same order anisotropies (linear response) or by the combined influence of several lower order anisotropies (nonlinear response) in the initial state. The mixed higherorder anisotropic flow and nonlinear response coefficients of charged particles are measured as functions of transverse momentum and centrality in PbPb collisions at nucleonnucleon center-of-mass energies √sNN = 2.76 and 5.02 TeV with the CMS detector. The results are compared with viscous hydrodynamic calculations using several different initial conditions, as well as microscopic transport model calculations. None of the models provides a simultaneous description of the mixed higher-order flow harmonics and nonlinear response coefficients.application/pdfengThe European physical journal. C, Particles and fields. Berlin. Vol. 80, no. 6 (June 2020), 534, 25 p.Aceleradores de partículasColisao de ions pesadosMixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 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:UFRGSTEXT001116392.pdf.txt001116392.pdf.txtExtracted Texttext/plain95770http://www.lume.ufrgs.br/bitstream/10183/212764/2/001116392.pdf.txtd8449c2d8623707db47a25719cf5a597MD52ORIGINAL001116392.pdfTexto completo (inglês)application/pdf1745257http://www.lume.ufrgs.br/bitstream/10183/212764/1/001116392.pdfeec8129bcaabb442bca8a95d0a6c09f1MD5110183/2127642023-08-03 03:34:59.536887oai:www.lume.ufrgs.br:10183/212764Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-08-03T06:34:59Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 TeV |
title |
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 TeV |
spellingShingle |
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 TeV Sirunyan, A. M. Aceleradores de partículas Colisao de ions pesados |
title_short |
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 TeV |
title_full |
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 TeV |
title_fullStr |
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 TeV |
title_full_unstemmed |
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 TeV |
title_sort |
Mixed higher-order anisotropic flow and nonlinear response coefficients of charged particles in PbPb collisions at √sNN = 2.76 and 5.02 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 Colisao de ions pesados |
topic |
Aceleradores de partículas Colisao de ions pesados |
description |
Anisotropies in the initial energy density distribution of the quark-gluon plasma created in high energy heavy ion collisions lead to anisotropies in the azimuthal distributions of the final-state particles known as collective anisotropic flow. Fourier harmonic decomposition is used to quantify these anisotropies. The higher-order harmonics can be induced by the same order anisotropies (linear response) or by the combined influence of several lower order anisotropies (nonlinear response) in the initial state. The mixed higherorder anisotropic flow and nonlinear response coefficients of charged particles are measured as functions of transverse momentum and centrality in PbPb collisions at nucleonnucleon center-of-mass energies √sNN = 2.76 and 5.02 TeV with the CMS detector. The results are compared with viscous hydrodynamic calculations using several different initial conditions, as well as microscopic transport model calculations. None of the models provides a simultaneous description of the mixed higher-order flow harmonics and nonlinear response coefficients. |
publishDate |
2020 |
dc.date.accessioned.fl_str_mv |
2020-08-08T03:46:18Z |
dc.date.issued.fl_str_mv |
2020 |
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/10183/212764 |
dc.identifier.issn.pt_BR.fl_str_mv |
1434-6044 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001116392 |
identifier_str_mv |
1434-6044 001116392 |
url |
http://hdl.handle.net/10183/212764 |
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. 80, no. 6 (June 2020), 534, 25 p. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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