1304.7154 (E. L. Bratkovskaya et al.)

Parton-hadron matter in- and out-off equilibrium    [PDF]

E. L. Bratkovskaya, V. Ozvenchuk, W. Cassing, V. P. Konchakovski, O. Linnyk

We study the shear and bulk viscosities of partonic and hadronic matter - as well as the electric conductivity - as functions of temperature $T$ within the Parton-Hadron-String Dynamics (PHSD) off-shell transport approach. Dynamical hadronic and partonic systems in equilibrium are studied by the PHSD simulations in a finite box with periodic boundary conditions. The ratio of the shear viscosity to entropy density $\eta(T)/s(T)$ from PHSD shows a minimum (with a value of about 0.1) close to the critical temperature $T_c$. For $TView original: http://arxiv.org/abs/1304.7154