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HK: Fachverband Physik der Hadronen und Kerne

HK 20: Heavy Ion Collisions and QCD Phases IV

HK 20.7: Vortrag

Dienstag, 28. März 2017, 15:45–16:00, F 1

A generalized quasiparticle model for hot QCD matter — •Thorsten Steinert and Wolfgang Cassing — Institut für Theoretische Physik, JLU Giessen, 35392 Giessen, Germany

The QCD equation of state as predicted by lattice QCD calculations (lQCD) is well reproduced in terms of effective quasiparticle models. These models so far fail to describe the susceptibilties and underestimate the pressure at finite densities. We present a generalised quasiparticle model where the partonic propagators explicitly depend on the three-momentum with respect to the medium. Within this extended model we reproduce simultaneously the equation of state and the susceptibilties as provided by lQCD. We calculate the shear and bulk viscosity as well as the electric conductivity and compared them to default quasiparticle models. We find a good agreement between our model and available lattice data for all transport coefficients. We use thermodynamic consistency to extend the model to finite chemical potential.