Evaluation of particle-anti-particle scaled correlation within effective models
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 UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.nuclphysa.2019.121655 http://hdl.handle.net/11449/196546 |
Resumo: | 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. |
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Repositório Institucional da UNESP |
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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 ColoradoGarcia, Andre F. [UNESP]Koch, VolkerPinto, Marcus B.2020-12-10T19:48:27Z2020-12-10T19:48:27Z2020-02-01info: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/openAccess2021-10-23T08:05:18Zoai:repositorio.unesp.br:11449/196546Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T08:05:18Repositório 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 |
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.contributor.author.fl_str_mv |
Garcia, Andre F. [UNESP] Koch, Volker Pinto, Marcus B. |
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 |
|
_version_ |
1799964669265313792 |