Hydrodynamic approach to the centrality dependence of di-hadron correlations
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevC.95.064908 http://hdl.handle.net/11449/159577 |
Resumo: | Measurements of di-hadron azimuthal correlations at different centralities for Au + Au collisions at 200A GeV were reported by the PHENIX Collaboration. The data were presented for different ranges of transverse momentum. In particular, it was observed that the away-side correlation evolves from a double-to a single-peak structure when the centrality decreases. In this work, we show that these features naturally appear due to an interplay between the centrality-dependent smooth background elliptic flow and the one produced by event-byevent fluctuating peripheral tubes. To compare with the PHENIX data, we also carry out numerical simulations by using a hydrodynamical code NEXSPHERIO, and calculate the correlations by both cumulant and the ZYAM method employed by the PHENIX Collaboration. Our results are in reasonable agreement with the data. A brief discussion on the physical content of the present model and its difference from other viewpoints is also presented. |
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Hydrodynamic approach to the centrality dependence of di-hadron correlationsMeasurements of di-hadron azimuthal correlations at different centralities for Au + Au collisions at 200A GeV were reported by the PHENIX Collaboration. The data were presented for different ranges of transverse momentum. In particular, it was observed that the away-side correlation evolves from a double-to a single-peak structure when the centrality decreases. In this work, we show that these features naturally appear due to an interplay between the centrality-dependent smooth background elliptic flow and the one produced by event-byevent fluctuating peripheral tubes. To compare with the PHENIX data, we also carry out numerical simulations by using a hydrodynamical code NEXSPHERIO, and calculate the correlations by both cumulant and the ZYAM method employed by the PHENIX Collaboration. Our results are in reasonable agreement with the data. A brief discussion on the physical content of the present model and its difference from other viewpoints is also presented.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG)Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Estadual Paulista, BR-01049010 Sao Paulo, BrazilUniv Sao Paulo, BR-03178200 Sao Paulo, BrazilUniv Fed Alfenas, BR-37130000 Alfenas, MG, BrazilUniv Fed Rio de Janeiro, BR-21941901 Rio De Janeiro, BrazilUniv Estadual Paulista, BR-01049010 Sao Paulo, BrazilCNPq: 449694/2014-3Amer Physical SocUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Univ Fed AlfenasUniversidade Federal do Rio de Janeiro (UFRJ)Castilho, Wagner M. [UNESP]Qian, Wei-Liang [UNESP]Gardim, Fernando G.Hama, YogiroKodama, Takeshi2018-11-26T15:44:21Z2018-11-26T15:44:21Z2017-06-15info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article7application/pdfhttp://dx.doi.org/10.1103/PhysRevC.95.064908Physical Review C. College Pk: Amer Physical Soc, v. 95, n. 6, 7 p., 2017.2469-9985http://hdl.handle.net/11449/15957710.1103/PhysRevC.95.064908WOS:000403355800004WOS000403355800004.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review C1,443info:eu-repo/semantics/openAccess2023-11-13T06:14:45Zoai:repositorio.unesp.br:11449/159577Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:35:50.763910Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Hydrodynamic approach to the centrality dependence of di-hadron correlations |
title |
Hydrodynamic approach to the centrality dependence of di-hadron correlations |
spellingShingle |
Hydrodynamic approach to the centrality dependence of di-hadron correlations Castilho, Wagner M. [UNESP] |
title_short |
Hydrodynamic approach to the centrality dependence of di-hadron correlations |
title_full |
Hydrodynamic approach to the centrality dependence of di-hadron correlations |
title_fullStr |
Hydrodynamic approach to the centrality dependence of di-hadron correlations |
title_full_unstemmed |
Hydrodynamic approach to the centrality dependence of di-hadron correlations |
title_sort |
Hydrodynamic approach to the centrality dependence of di-hadron correlations |
author |
Castilho, Wagner M. [UNESP] |
author_facet |
Castilho, Wagner M. [UNESP] Qian, Wei-Liang [UNESP] Gardim, Fernando G. Hama, Yogiro Kodama, Takeshi |
author_role |
author |
author2 |
Qian, Wei-Liang [UNESP] Gardim, Fernando G. Hama, Yogiro Kodama, Takeshi |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) Univ Fed Alfenas Universidade Federal do Rio de Janeiro (UFRJ) |
dc.contributor.author.fl_str_mv |
Castilho, Wagner M. [UNESP] Qian, Wei-Liang [UNESP] Gardim, Fernando G. Hama, Yogiro Kodama, Takeshi |
description |
Measurements of di-hadron azimuthal correlations at different centralities for Au + Au collisions at 200A GeV were reported by the PHENIX Collaboration. The data were presented for different ranges of transverse momentum. In particular, it was observed that the away-side correlation evolves from a double-to a single-peak structure when the centrality decreases. In this work, we show that these features naturally appear due to an interplay between the centrality-dependent smooth background elliptic flow and the one produced by event-byevent fluctuating peripheral tubes. To compare with the PHENIX data, we also carry out numerical simulations by using a hydrodynamical code NEXSPHERIO, and calculate the correlations by both cumulant and the ZYAM method employed by the PHENIX Collaboration. Our results are in reasonable agreement with the data. A brief discussion on the physical content of the present model and its difference from other viewpoints is also presented. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-15 2018-11-26T15:44:21Z 2018-11-26T15:44:21Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1103/PhysRevC.95.064908 Physical Review C. College Pk: Amer Physical Soc, v. 95, n. 6, 7 p., 2017. 2469-9985 http://hdl.handle.net/11449/159577 10.1103/PhysRevC.95.064908 WOS:000403355800004 WOS000403355800004.pdf |
url |
http://dx.doi.org/10.1103/PhysRevC.95.064908 http://hdl.handle.net/11449/159577 |
identifier_str_mv |
Physical Review C. College Pk: Amer Physical Soc, v. 95, n. 6, 7 p., 2017. 2469-9985 10.1103/PhysRevC.95.064908 WOS:000403355800004 WOS000403355800004.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Physical Review C 1,443 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
7 application/pdf |
dc.publisher.none.fl_str_mv |
Amer Physical Soc |
publisher.none.fl_str_mv |
Amer Physical Soc |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808128832209682432 |