Article thumbnail

Collisional energy loss above the critical temperature in QCD

By United States NY 11973 Upton Brookhaven National Laboratory ShuRIKEN/BNL Research Center Lin, United States) NY 11973 Upton Brookhaven National Laboratory Robert D.(Department of Physics Pisarski and United States) MI 49008 Kalamazoo 1903 W. Michigan Avenue Western Michigan University Vladimir V.(Department of Physics Skokov

Abstract

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 of leading order in perturbation theory, at a fixed value of the coupling constant we generically find that collisional energy loss is suppressed by powers of the Polyakov loop, <math altimg="si1.gif" xmlns="http://www.w3.org/1998/Math/MathML"><mi>l</mi><mo>&lt;</mo><mn>1</mn></math> . For small values of the loop, this suppression is linear when the heavy quark scatters off of light quarks, and quadratic when the heavy quark scatters off of gluons, or for Compton scattering

Year: 2014
DOI identifier: 10.1016/j.physletb.2014.01.043
OAI identifier: oai:www.openaccessrepository.it:5963

Suggested articles


To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.