2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/48043We study the quark energy loss in an expanding quark-gluon plasma. The expanding plasma produced in high energy AA-collision is described by Bjorken's model. The dependence of the energy loss on the infrared cutoff for the radiated gluons, on the quark mass, and on the initial conditions of QCD plasma is investigated.Talk given at 33rd Rencontres de Moriond; QCD and High Energy Hadronic Interactions, Les Arcs, France, Mar 21-28, 1998High Energy Physics - Phenomenologytext