Strongly interacting parton-hadron matter in- and out-off equilibrium

14th International Conference on Strangeness in Quark Matter

Bratkovskaya, E.L.^1,2 ; Linnyk, O.^3 ; Cassing, W.^3 ; Konchakovski, V.P.^3 ; Ozvenchuk, V.^2,4

Institute for Theoretical Physics, Goethe University, Frankfurt am Main, Germany^1

Frankfurt Institut for Advanced Studies, Institute for Theoretical Physics, Goethe Universität, Frankfurt am Main, Germany^2

Institut für Theoretische Physik, Universität Gießen, Gießen, Germany^3

Subatech, UMR 6457, Université de Nantes, Nantes, France^4

关键词: Direct photons;    Elliptic flows;    Equation of state;    Equilibrium properties;    Hadronic collisions;    Heavy ion collision;    Non-equilibrium dynamics;    Transport coefficient;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/509/1/012036/pdf
DOI  :  10.1088/1742-6596/509/1/012036

来源: IOP

【 摘 要 】

We study the equilibrium properties of strongly-interacting infinite parton-hadron matter, characterized by the transport coefficients such as shear and bulk viscosity and electric conductivity, and the non-equilibrium dynamics of heavy-ion collisions within the Parton-Hadron-String Dynamics (PHSD) transport approach, which incorporates explicit partonic degrees of freedom in terms of strongly interacting quasiparticles (quarks and gluons) in line with an equation of state from lattice QCD as well as the dynamical hadronization and hadronic collision dynamics in the final reaction phase. We discuss in particular the possible origin for the strong elliptic flow v2of direct photons observed at RHIC energies.