The QGP phase in relativistic heavy-ion collisions

Details The QGP phase in relativistic heavy-ion collisions The QGP phase in relativistic heavy-ion collisions

2012-02-22

arxiv.org/abs/1202.4891v1

Physics

Nuclear Physics

Nuclear Theory

To be published by Springer in Proceedings of the International Symposium on `Exciting Physics', Makutsi-Range, South Africa,

Scientific paper

The dynamics of partons, hadrons and strings in relativistic nucleus-nucleus collisions is analyzed within the novel Parton-Hadron-String Dynamics (PHSD) transport approach, which is based on a dynamical quasiparticle model for partons (DQPM) matched to reproduce recent lattice-QCD results - including the partonic equation of state - in thermodynamic equilibrium. The transition from partonic to hadronic degrees of freedom is described by covariant transition rates for the fusion of quark-antiquark pairs or three quarks (antiquarks), respectively, obeying flavor current-conservation, color neutrality as well as energy-momentum conservation. The PHSD approach is applied to nucleus-nucleus collisions from low SIS to RHIC energies. The traces of partonic interactions are found in particular in the elliptic flow of hadrons as well as in their transverse mass spectra.

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