Speaker
Björn Bäuchle
(FIAS Frankfurt)
Description
Photons, as all electromagnetic probes, can give direct access to the hot and dense phase of a heavy-ion reaction. We show calculations of direct photon emission at highest energies available with the UrQMD-hybrid model. UrQMD is a full microscopic+macroscopic transport/fluiddynamics hybrid model with hadron- and string-driven equilibration phase, a fll (3+1)-dimensional fluiddynamic hot and dense phase and a hadronic after-burner. Unequilibrated matter at high rapidity is preserved during the fluid phase. A strong emphasis is set on the impact of viscosity and Equation of State at zero and non-zero band string aryon density to the spectra and flow patterns of thermal and non-thermal photons in A+A-collisions at RHIC, LHC.
Primary author
Björn Bäuchle
(FIAS Frankfurt)
Co-authors
Andreas Grimm
(FIAS Frankfurt)
Marcus Bleicher
(Uni Frankfurt)
