Dynamical screening away from equilibrium: hard photon production and collisional energy loss

R. Baier, M. Dirks, K. Redlich

Published 1998-09-01, updated 1998-09-07Version 2

We investigate the production rate for hard real photons and the collisional energy loss in the quark-gluon plasma away from chemical equilibrium. Applying the Hard-Thermal-Loop resummation scheme away from equilibrium, we can show that Landau damping provides dynamical screening for both fermion and boson exchange present in the two quantities.