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In this study we investigate the dynamics of strongly interacting parton–hadron matter by calculating the centrality dependence of direct photons produced in Au+Au collisions at sNN=200 GeV within the Parton–Hadron-String Dynamics (PHSD) transport approach. As sources for ‘direct’ photons, we incorporate the interactions of quarks and gluons as well as hadronic interactions (π+π→ρ+γ, ρ+π→π+γ, meson–meson...
A multi-step setup for heavy-flavour studies in high-energy nucleus–nucleus collisions is presented. The initial hard production of QQ¯ pairs is simulated with the POWHEG pQCD event generator, interfaced with the PYTHIA parton shower. In a nucleus–nucleus collision the propagation of the heavy quarks in the medium is described through the relativistic Langevin equation. The numerical results are compared...
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