Calculations of direct photon emission in Heavy Ion Collisions at \sqrt{s_NN} = 200 GeV

Abstract

Direct photon emission in heavy-ion collisions is calculated within a relativistic micro+macro hybrid model and compared to the microscopic transport model UrQMD. In the hybrid approach, the high-density part of the collision is calculated by an ideal 3+1-dimensional hydrodynamic calculation, while the early (pre-equilibrium-) and late (rescattering-) phase are calculated with the transport model. We study both models with Au+Au-collisions at \sqrt{s_NN} = 200 GeV and compare the results to experimental data published by the PHENIX collaboration.

References in corpus (10)

• PYTHIA 6.4 Physics and Manual
• Simulating elliptic flow with viscous hydrodynamics
• Fully integrated transport approach to heavy ion reactions with an intermediate hydrodynamic stage
• Enhanced production of direct photons in Au+Au collisions at sqrt(s_NN)=200 GeV and implications for the initial temperature
• Pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV: Evidence for the onset of deconfinement
• Space-time evolution of bulk QCD matter
• Multiplicity scaling in ideal and viscous hydrodynamics
• Dissipative Hydrodynamics and Heavy Ion Collisions
• Evolution of pion HBT radii from RHIC to LHC -- Predictions from ideal hydrodynamics
• Hybrid model calculations of direct photons in high-energy nuclear collisions