2013/12/11 by Shu Lin, Robert D. Pisarski, Vladimir V. Skokov · 1 citation
Physics and Astronomy · #hep-ph #nucl-th
paper · pdf · doi:10.1016/j.physletb.2014.01.043
19 pages, 4 figures
arxiv created 2013/12/11 · arxiv updated 2015/06/18
We compute the collisional energy loss for a heavy quark above the critical temperature in Quantum ChromoDynamics (QCD). We work in the semi Quark-Gluon Plasma, which assumes that this region is dominated by the non-trivial holonomy of the thermal Wilson line. Relative to the result to leading order in perturbation theory, at a fixed value of the coupling constant we generically we find that collisional energy loss is suppressed by powers of the Polyakov loop, l < 1. For small values of the loop, this suppression is linear for the scattering off of light quarks, and quadratic for the scattering off of gluons, or for Compton scattering.