Parton-hadron matter at finite temperature and chemical potential

31st Winter Workshop on Nuclear Dynamics

Bratkovskaya, E.L.^1 ; Konchakovski, V.P.^2 ; Cassing, W.^2

Institute for Theoretical Physics, University of Frankfurt, Frankfurt, Germany^1

Institute for Theoretical Physics, University of Giessen, Giessen, Germany^2

关键词: Equation of state;    Finite temperatures;    Pb-Pb collisions;    Rapidity spectra;    Relativistic nuclei;    Thermodynamic equilibria;    Transport coefficient;    Transverse momenta;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/636/1/012016/pdf
DOI  :  10.1088/1742-6596/636/1/012016

来源: IOP

【 摘 要 】

The dynamics of partons and hadrons in ultra-relativistic nucleus-nucleus collisions is analyzed within the Parton-Hadron-String Dynamics (PHSD) transport approach, which is based on a dynamical quasiparticle model for the partonic phase (DQPM) including a dynamical hadronization scheme while reproducing lattice QCD results in thermodynamic equilibrium for the equation-of-state as well as transport coefficients like shear and bulk viscosities or the electric conductivity of the hot QCD medium. The PHSD model reproduces a large variety of observables from SPS to LHC energies, e.g. the quark-number scaling of elliptic flow, transverse mass and rapidity spectra of charged hadrons, dilepton spectra, open and hidden charm production, collective flow coefficients etc., which are associated with the observation of a strongly interacting QGP (sQGP). The 'highlights' of the latest results from LHC energies are presented with a focus on the correlation between the average transverse momentumand the number of charged particles Nchin p-p, p-Pb and Pb-Pb collisions at midrapidity as observed by the ALICE Collaboration.