Phase diagrams in nonlocal Polyakov-Nambu-Jona-Lasinio models constrained by lattice QCD results

Based on lattice QCD-adjusted SU(2)f nonlocal Polyakov-Nambu-Jona-Lasinio (PNJL) models, we investigate how the location of the critical endpoint in the QCD phase diagram depends on the strenght of the vector meson coupling, as well as the Polyakov-loop (PL) potential and the form factors of the cov...

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Detalles Bibliográficos
Autores principales: Contrera, Gustavo Aníbal, Grunfeld, Ana Gabriela, Blaschke, David
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2014
Materias:
Física
Nucleus Letter
Quark Matter
Polyakov Loop
Mean Field Approximation
Quark Propagator
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/129308
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-129308
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Nucleus Letter
Quark Matter
Polyakov Loop
Mean Field Approximation
Quark Propagator
spellingShingle Física
Nucleus Letter
Quark Matter
Polyakov Loop
Mean Field Approximation
Quark Propagator
Contrera, Gustavo Aníbal
Grunfeld, Ana Gabriela
Blaschke, David
Phase diagrams in nonlocal Polyakov-Nambu-Jona-Lasinio models constrained by lattice QCD results
topic_facet Física
Nucleus Letter
Quark Matter
Polyakov Loop
Mean Field Approximation
Quark Propagator
description Based on lattice QCD-adjusted SU(2)f nonlocal Polyakov-Nambu-Jona-Lasinio (PNJL) models, we investigate how the location of the critical endpoint in the QCD phase diagram depends on the strenght of the vector meson coupling, as well as the Polyakov-loop (PL) potential and the form factors of the covariant model. The latter are constrained by lattice QCD data for the quark propagator. The strength of the vector coupling is adjusted such as to reproduce the slope of the pseudocritical temperature for the chiral phase transition at low chemical potential extracted recently from lattice QCD simulations. Our study supports the existence of a critical endpoint in the QCD phase diagram albeit the constraint for the vector coupling shifts its location to lower temperatures and higher baryochemical potentials than in the case without it.
format Articulo
Preprint
author Contrera, Gustavo Aníbal
Grunfeld, Ana Gabriela
Blaschke, David
author_facet Contrera, Gustavo Aníbal
Grunfeld, Ana Gabriela
Blaschke, David
author_sort Contrera, Gustavo Aníbal
title Phase diagrams in nonlocal Polyakov-Nambu-Jona-Lasinio models constrained by lattice QCD results
title_short Phase diagrams in nonlocal Polyakov-Nambu-Jona-Lasinio models constrained by lattice QCD results
title_full Phase diagrams in nonlocal Polyakov-Nambu-Jona-Lasinio models constrained by lattice QCD results
title_fullStr Phase diagrams in nonlocal Polyakov-Nambu-Jona-Lasinio models constrained by lattice QCD results
title_full_unstemmed Phase diagrams in nonlocal Polyakov-Nambu-Jona-Lasinio models constrained by lattice QCD results
title_sort phase diagrams in nonlocal polyakov-nambu-jona-lasinio models constrained by lattice qcd results
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/129308
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AT grunfeldanagabriela phasediagramsinnonlocalpolyakovnambujonalasiniomodelsconstrainedbylatticeqcdresults
AT blaschkedavid phasediagramsinnonlocalpolyakovnambujonalasiniomodelsconstrainedbylatticeqcdresults
bdutipo_str Repositorios
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