Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma

Abstract: Lattice data for the QCD equation of state and the baryon susceptibility near the crossover phase transition (at zero baryon density) are used to determine the input parameters of a 5-dimensional Einstein-Maxwell-Dilaton holographic model that provides a consistent holographic framework to...

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Autores: Rougemont, Romulo, Ficnar, Andrej, Finazzo, Stefano I., Noronha, Jorge
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/231371
Acesso em linha:http://dx.doi.org/10.1007/JHEP04(2016)102
http://hdl.handle.net/11449/231371
Access Level:acceso abierto
Palavra-chave:Gauge-gravity correspondence
Holography and quark-gluon plasmas
Phase Diagram of QCD
Phenomenological Models
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spelling Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasmaGauge-gravity correspondenceHolography and quark-gluon plasmasPhase Diagram of QCDPhenomenological ModelsAbstract: Lattice data for the QCD equation of state and the baryon susceptibility near the crossover phase transition (at zero baryon density) are used to determine the input parameters of a 5-dimensional Einstein-Maxwell-Dilaton holographic model that provides a consistent holographic framework to study both equilibrium and out-of-equilibrium properties of a hot and baryon rich strongly coupled quark-gluon plasma (QGP). We compare our holographic equation of state computed at nonzero baryon chemical potential, μB , with recent lattice calculations and find quantitative agreement for the pressure and the speed of sound for μB ≤ 400 MeV. This holographic model is used to obtain holographic predictions for the temperature and μB dependence of the drag force and the Langevin diffusion coefficients associated with heavy quark jet propagation as well as the jet quenching parameter q and the shooting string energy loss of light quarks in the baryon dense plasma. We find that the energy loss of heavy and light quarks generally displays a nontrivial, fast-varying behavior as a function of the temperature near the crossover. Moreover, energy loss is also found to generally increase due to nonzero baryon density effects even though this strongly coupled liquid cannot be described in terms of well defined quasiparticle excitations. Furthermore, to get a glimpse of how thermalization occurs in a hot and baryon dense QGP, we study how the lowest quasinormal mode of an external massless scalar disturbance in the bulk is affected by a nonzero baryon charge. We find that the equilibration time associated with the lowest quasinormal mode decreases in a dense medium.Instituto de Física Universidade de São Paulo, Rua do Matão, 1371, ButantãRudolf Peierls Centre for Theoretical Physics University of Oxford, 1 Keble RoadInstituto de Física Teórica Universidade do Estado de São Paulo, Rua Dr. Bento T. Ferraz, 271Department of Physics Columbia University, 538 West 120th StreetUniversidade de São Paulo (USP)University of OxfordUniversidade do Estado de São PauloColumbia University2022-04-29T08:44:59Z2022-04-29T08:44:59Z2016-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/JHEP04(2016)102Journal of High Energy Physics, v. 2016, n. 4, 2016.1029-84791126-6708http://hdl.handle.net/11449/23137110.1007/JHEP04(2016)1022-s2.0-84963721660Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of High Energy Physicsinfo:eu-repo/semantics/openAccessRougemont, RomuloFicnar, AndrejFinazzo, Stefano I.Noronha, Jorge2024-11-25T15:10:37Zoai:repositorio.unesp.br:11449/231371Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-11-25T15:10:37Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma
title Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma
spellingShingle Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma
Rougemont, Romulo
Gauge-gravity correspondence
Holography and quark-gluon plasmas
Phase Diagram of QCD
Phenomenological Models
title_short Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma
title_full Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma
title_fullStr Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma
title_full_unstemmed Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma
title_sort Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma
dc.creator.none.fl_str_mv Rougemont, Romulo
Ficnar, Andrej
Finazzo, Stefano I.
Noronha, Jorge
author Rougemont, Romulo
author_facet Rougemont, Romulo
Ficnar, Andrej
Finazzo, Stefano I.
Noronha, Jorge
author_role author
author2 Ficnar, Andrej
Finazzo, Stefano I.
Noronha, Jorge
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade de São Paulo (USP)
University of Oxford
Universidade do Estado de São Paulo
Columbia University
dc.subject.por.fl_str_mv Gauge-gravity correspondence
Holography and quark-gluon plasmas
Phase Diagram of QCD
Phenomenological Models
topic Gauge-gravity correspondence
Holography and quark-gluon plasmas
Phase Diagram of QCD
Phenomenological Models
description Abstract: Lattice data for the QCD equation of state and the baryon susceptibility near the crossover phase transition (at zero baryon density) are used to determine the input parameters of a 5-dimensional Einstein-Maxwell-Dilaton holographic model that provides a consistent holographic framework to study both equilibrium and out-of-equilibrium properties of a hot and baryon rich strongly coupled quark-gluon plasma (QGP). We compare our holographic equation of state computed at nonzero baryon chemical potential, μB , with recent lattice calculations and find quantitative agreement for the pressure and the speed of sound for μB ≤ 400 MeV. This holographic model is used to obtain holographic predictions for the temperature and μB dependence of the drag force and the Langevin diffusion coefficients associated with heavy quark jet propagation as well as the jet quenching parameter q and the shooting string energy loss of light quarks in the baryon dense plasma. We find that the energy loss of heavy and light quarks generally displays a nontrivial, fast-varying behavior as a function of the temperature near the crossover. Moreover, energy loss is also found to generally increase due to nonzero baryon density effects even though this strongly coupled liquid cannot be described in terms of well defined quasiparticle excitations. Furthermore, to get a glimpse of how thermalization occurs in a hot and baryon dense QGP, we study how the lowest quasinormal mode of an external massless scalar disturbance in the bulk is affected by a nonzero baryon charge. We find that the equilibration time associated with the lowest quasinormal mode decreases in a dense medium.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-01
2022-04-29T08:44:59Z
2022-04-29T08:44:59Z
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/10.1007/JHEP04(2016)102
Journal of High Energy Physics, v. 2016, n. 4, 2016.
1029-8479
1126-6708
http://hdl.handle.net/11449/231371
10.1007/JHEP04(2016)102
2-s2.0-84963721660
url http://dx.doi.org/10.1007/JHEP04(2016)102
http://hdl.handle.net/11449/231371
identifier_str_mv Journal of High Energy Physics, v. 2016, n. 4, 2016.
1029-8479
1126-6708
10.1007/JHEP04(2016)102
2-s2.0-84963721660
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of High Energy Physics
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
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 15,198674

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