PHOTON EMISSION IN A HOT QCD PLASMA
Various mechanisms of thermal photon production are reviewed and their implications for heavy ion collisions are briefly sketched.
Photon physics in heavy ion collisions at the LHC
Various pion and photon production mechanisms in high-energy nuclear collisions at RHIC and LHC are discussed. Comparison with RHIC data is done whenever possible. The prospect of using electromagnetic probes to characterize quark-gluon plasma formation is assessed...
Baryon Stopping in High-Energy Collisions in the DPMJET-III Model
The significant stopping of the participant nucleons in hadron-nucleus and nucleus-nucleus collisions is investigated with the Monte Carlo event generator DPMJET-III by introducing new diquark breaking diagrams. It is argued that a similar mechanism might also lead to baryon stopping in proton-proton collisions at collider and cosmic ray energies. Model results are compared to data on net-proton rapidity distributions in central nuclear collisions. In addition, extrapolations of spectrum-weighted moments and energy fractions to cosmic ray energies are given.