Transport properties of the hot and dense sQGP

Hot Quarks 2014: Workshop for young scientists on the physics of ultrarelativistic nucleus-nucleus collisions

Berrehrah, H.^1 ; Bratkovskaya, E.^1 ; Cassing, W.^2 ; Marty, R.^1,3

Frankfurt Institute for Advanced Studies, Institute for Theoretical Physics, Johann Wolfgang Goethe Universität, Ruth-Moufang-Strasse 1, Frankfurt am Main

60438, Germany^1

Institut für Theoretische Physik, Universität Giessen, Giessen

35392, Germany^2

Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1, Villeurbanne, France^3

关键词: Beam energies;    Dense matter;    Finite temperatures;    Lattice QCD;    Quark-gluon plasma;    Quasi particles;    Relaxation time approximation;    Transport coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/612/1/012050/pdf
DOI  :  10.1088/1742-6596/612/1/012050

来源: IOP

【 摘 要 】

The transport properties of the quark gluon plasma (QGP) are studied in a QCD medium at finite temperature and chemical potential. We calculate the shear viscosity η(T,μq) and the electric conductivity σe(T, μq) for a system of interacting massive and broad quasi-particles as described by the dynamical quasi-particle model "DQPM" at finite temperature T and quark chemical potential μqwithin the relaxation time approximation. Our results are in a good agreement with lattice QCD at finite temperature and show clearly the increase of the transport coefficients with increasing T and μq. Our results provide the basic ingredients for the study of the hot and dense matter in the Beam Energy Scan (BES) at RHIC and CBM at FAIR.