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

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversity of Oxford-
Autor(es): dc.contributorUniversidade do Estado de São Paulo-
Autor(es): dc.contributorColumbia University-
Autor(es): dc.creatorRougemont, Romulo-
Autor(es): dc.creatorFicnar, Andrej-
Autor(es): dc.creatorFinazzo, Stefano I.-
Autor(es): dc.creatorNoronha, Jorge-
Data de aceite: dc.date.accessioned2025-08-21T21:34:01Z-
Data de disponibilização: dc.date.available2025-08-21T21:34:01Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2016-04-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/JHEP04(2016)102-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/231371-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/231371-
Descrição: dc.descriptionAbstract: 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.-
Descrição: dc.descriptionInstituto de Física Universidade de São Paulo, Rua do Matão, 1371, Butantã-
Descrição: dc.descriptionRudolf Peierls Centre for Theoretical Physics University of Oxford, 1 Keble Road-
Descrição: dc.descriptionInstituto de Física Teórica Universidade do Estado de São Paulo, Rua Dr. Bento T. Ferraz, 271-
Descrição: dc.descriptionDepartment of Physics Columbia University, 538 West 120th Street-
Idioma: dc.languageen-
Relação: dc.relationJournal of High Energy Physics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectGauge-gravity correspondence-
Palavras-chave: dc.subjectHolography and quark-gluon plasmas-
Palavras-chave: dc.subjectPhase Diagram of QCD-
Palavras-chave: dc.subjectPhenomenological Models-
Título: dc.titleEnergy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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