Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Status Confirmed
Seminar Series IPN-X
Subjects hep-ph
Date Friday 28 April 2017
Time 11:00
Institute CPHT
Seminar Room Salle de conférences, bât. 6
Speaker's Last Name Szép
Speaker's First Name Zsolt
Speaker's Email Address
Speaker's Institution Eötvös University, Budapest
Title Thermodynamics of the vector meson extended quark-meson model
Abstract We investigate the effects of (axial)vector mesons on the chiral phase transition of the model containing 2+1 constituent quarks and Polyakov-loop degrees of freedom. A chi^2 minimization procedure is used to parameterize the model based on tree-level decay widths and vacuum scalar and pseudoscalar curvature masses which includes the vacuum and thermal contribution of the constituent quarks. The pressure and the derived thermodynamical observables determined from it at finite temperature T and chemical potential µ using a simple approximation for the grand potential are compared to lattice results. The best parametrization of the model allows for the existence of the critical end point (CEP) of the µ–T phase diagram.
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