1999/10/15 by R. Baier, Baier, R., M. Dirks +3
Physics and Astronomy · #Cosmology and Gravitation Theories #High-Energy Particle Collisions Research #Optical properties and cooling technologies in crystalline materials #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9910353
Talk given at the Japanese Workshop on Thermal Quantum Field Theories and their Applications, Kyoto, Japan, 25.-27. August 1999, 6 pages
arxiv created 1999/10/15 · arxiv updated 2009/11/30
Within the Closed Time Path Formalism of Thermal Field Theory we calculate the hard photon emission rate as well as the collisional energy-loss rate for a quark-gluon plasma away from chemical equilibrium. Mass singularities are shown to be dynamically screened within HTL-resummed perturbation theory also away from equilibrium. Additional (pinch) singularities are absent and well defined results are obtained.