Parton energy loss with detailed balance - art. no. 142301

Stimulated gluon emission and thermal absorption, in addition to induced ra diation, are considered for an energetic parton propagating inside a quark- gluon plasma. In the presence of thermal gluons, stimulated emission reduce s, while absorption increases, the parton's energy. The net effect is a red uction of the parton energy loss. Though decreasing asymptotically as TIE w ith the parton energy, the relative reduction is found to be important for intermediate energies. The modified energy dependence of the energy loss wi ll affect the shape of suppression of moderately high PT hadrons due to jet quenching in high-energy heavy-ion collisions.