Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 65: Heavy Ion Collisions and QCD Phases 9

HK 65.6: Talk

Thursday, March 26, 2015, 18:15–18:30, T/SR14

Quark number susceptibilities within the dynamical quasiparticle model — •Thorsten Steinert and Wolfgang Cassing — Institut für Theoretische Physik, Universität Giessen, 35392 Giessen, Germany

QCD thermodynamics can be well described with effective quasiparticle models. We present such a model that treats quarks and gluons as fully dressed particles with effective masses and widths. This dynamical quasiparticle model (DQPM) is tuned to reproduce the equation of state from recent lattice QCD calculations at vanishing quark chemical potential as well as different correlators describing e.g. the shear and bulk viscosities, the electric and heat conductivities. We discuss various methods to extend the model to finite chemical potential and check their validity by calculating the quark number susceptibilities and compare them with recent lattice QCD results.