IFLP   13074
INSTITUTO DE FISICA LA PLATA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Phase diagrams and CEP location in nonlocal PNJL models adjusted to lattice QCD results
Autor/es:
GUSTAVO A. CONTRERA
Lugar:
Rio de Janeiro
Reunión:
Workshop; 9th Relativistic Aspects of Nuclear Physics (RANP2013); 2013
Institución organizadora:
Centro Brasileiro de Pesquisas FĂ­sicas
Resumen:
Based on nonlocal PNJL models, we investigate the dependence of the location of the critical endpoint in the QCD phase diagram on the details of the interaction, in particular the vector meson coupling, the Polyakov-loop 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.
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