Momentum Broadening in Weakly Coupled Quark-Gluon Plasma
  We calculate the probability distribution P(k_\perp) for the momentum perpendicular to its original direction of motion that an energetic quark or gluon picks up as it propagates through weakly coupled quark-gluon plasma in thermal equilibrium. 
Francesco D'Eramo, Christopher Lee, Mindaugas Lekaveckas, Hong Liu,   Krishna Rajagopal
hep-ph nucl-th