Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 74: Schwerionenkollisionen und QCD Phasen
HK 74.6: Vortrag
Donnerstag, 7. März 2013, 18:15–18:30, HSZ-201
Direct Photons at FAIR — •Bjørn Baeuchle1, Marcus Bleicher1,2, and Andreas Grimm1,2 — 1Frankfurt Institute for Advanced Studies (FIAS), Ruth-Moufang-Str. 1, D-60438 Frankfurt — 2Institut für Theoretische Physik, Goethe-Universität Frankfurt, Max-von-Laue-Straße 1, D-60438 Frankfurt
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 SiS100- and SiS-300 energies with the
UrQMD-hybrid model. UrQMD is a full microscopic+macroscopic
transport/fluiddynamics hybrid model with hadron- and string-driven
equilibration phase, a full (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
baryon density to the spectra and flow patterns of thermal
and non-thermal photons in A+A-collisions at the colliding systems
relevant for FAIR.
Supported by the Hessian LOEWE initiative through the Helmholtz
International Center for FAIR (HIC for FAIR) and BMBF.