Evaluation of particle-anti-particle scaled correlation within effective models

Correlations and fluctuations of physical quantities are known to play an important role in phase transitions and critical phenomena. In recent years some experimental attempts were made in the scope of the Beam Energy Scan program to locate a possible critical point in the QCD phase diagram. In thi...

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Detalles Bibliográficos
Autores: Garcia, Andre F. [UNESP], Koch, Volker, Pinto, Marcus B.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/196546
Acceso en línea:http://dx.doi.org/10.1016/j.nuclphysa.2019.121655
http://hdl.handle.net/11449/196546
Access Level:acceso abierto
Palabra clave:Scaled correlation
Off-diagonal quark susceptibility
Beam Energy Scan data
QCD phase diagram
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spelling Evaluation of particle-anti-particle scaled correlation within effective modelsScaled correlationOff-diagonal quark susceptibilityBeam Energy Scan dataQCD phase diagramCorrelations and fluctuations of physical quantities are known to play an important role in phase transitions and critical phenomena. In recent years some experimental attempts were made in the scope of the Beam Energy Scan program to locate a possible critical point in the QCD phase diagram. In this work we use the Nambu Jona-Lasinio model to investigate the off-diagonal quark susceptibility, which is related to the quark anti-quark scaled correlation at the mean field level. We show that this correlation has a significant peak near the critical point and, therefore, may be a useful quantity to measure in experiment. We further study the effects of a repulsive vector coupling, which reduces the strength of the scaled correlation near the critical point. (C) 2019 Elsevier B.V. All rights reserved.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)U.S. Department of Energy, Office of Science, Office of Nuclear PhysicsBeam Energy Scan Theory (BEST) Topical CollaborationUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP, BrazilLawrence Berkeley Natl Lab, Berkeley, CA 94720 USAUniv Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, BrazilUniv Colorado, Dept Phys, Boulder, CO 80309 USAUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP, BrazilCAPES: 001CNPq: 150327/2017-0CNPq: 303846/2017-8U.S. Department of Energy, Office of Science, Office of Nuclear Physics: DE-AC02-05CH11231CNPq: 464898/2014-5Elsevier B.V.Universidade Estadual Paulista (Unesp)Lawrence Berkeley Natl LabUniversidade Federal de Santa Catarina (UFSC)Univ Colorado2020-12-10T19:48:27Z2020-12-10T19:48:27Z2020-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article20http://dx.doi.org/10.1016/j.nuclphysa.2019.121655Nuclear Physics A. Amsterdam: Elsevier, v. 994, 20 p., 2020.0375-9474http://hdl.handle.net/11449/19654610.1016/j.nuclphysa.2019.121655WOS:000510521100013Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengNuclear Physics Ainfo:eu-repo/semantics/openAccessGarcia, Andre F. [UNESP]Koch, VolkerPinto, Marcus B.2024-11-22T19:47:10Zoai:repositorio.unesp.br:11449/196546Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-11-22T19:47:10Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Evaluation of particle-anti-particle scaled correlation within effective models
title Evaluation of particle-anti-particle scaled correlation within effective models
spellingShingle Evaluation of particle-anti-particle scaled correlation within effective models
Garcia, Andre F. [UNESP]
Scaled correlation
Off-diagonal quark susceptibility
Beam Energy Scan data
QCD phase diagram
title_short Evaluation of particle-anti-particle scaled correlation within effective models
title_full Evaluation of particle-anti-particle scaled correlation within effective models
title_fullStr Evaluation of particle-anti-particle scaled correlation within effective models
title_full_unstemmed Evaluation of particle-anti-particle scaled correlation within effective models
title_sort Evaluation of particle-anti-particle scaled correlation within effective models
dc.creator.none.fl_str_mv Garcia, Andre F. [UNESP]
Koch, Volker
Pinto, Marcus B.
author Garcia, Andre F. [UNESP]
author_facet Garcia, Andre F. [UNESP]
Koch, Volker
Pinto, Marcus B.
author_role author
author2 Koch, Volker
Pinto, Marcus B.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Lawrence Berkeley Natl Lab
Universidade Federal de Santa Catarina (UFSC)
Univ Colorado
dc.subject.por.fl_str_mv Scaled correlation
Off-diagonal quark susceptibility
Beam Energy Scan data
QCD phase diagram
topic Scaled correlation
Off-diagonal quark susceptibility
Beam Energy Scan data
QCD phase diagram
description Correlations and fluctuations of physical quantities are known to play an important role in phase transitions and critical phenomena. In recent years some experimental attempts were made in the scope of the Beam Energy Scan program to locate a possible critical point in the QCD phase diagram. In this work we use the Nambu Jona-Lasinio model to investigate the off-diagonal quark susceptibility, which is related to the quark anti-quark scaled correlation at the mean field level. We show that this correlation has a significant peak near the critical point and, therefore, may be a useful quantity to measure in experiment. We further study the effects of a repulsive vector coupling, which reduces the strength of the scaled correlation near the critical point. (C) 2019 Elsevier B.V. All rights reserved.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-10T19:48:27Z
2020-12-10T19:48:27Z
2020-02-01
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/10.1016/j.nuclphysa.2019.121655
Nuclear Physics A. Amsterdam: Elsevier, v. 994, 20 p., 2020.
0375-9474
http://hdl.handle.net/11449/196546
10.1016/j.nuclphysa.2019.121655
WOS:000510521100013
url http://dx.doi.org/10.1016/j.nuclphysa.2019.121655
http://hdl.handle.net/11449/196546
identifier_str_mv Nuclear Physics A. Amsterdam: Elsevier, v. 994, 20 p., 2020.
0375-9474
10.1016/j.nuclphysa.2019.121655
WOS:000510521100013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Nuclear Physics A
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 20
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
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 repositoriounesp@unesp.br
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score 15.301603

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