Abstract
One of the challenges in relating experimental measurements of the suppression in the number of mesons produced in heavy ion collisions to lattice QCD calculations is that whereas the lattice calculations treat mesons at rest, in a heavy ion collision a pair can have a significant velocity with respect to the hot fluid produced in the collision. The putative finds itself in a hot wind. We present the first rigorous nonperturbative calculation of the consequences of a wind velocity on the screening length for a heavy quark-antiquark pair in hot supersymmetric QCD. We find with only mildly dependent on and the wind direction. This velocity scaling, if realized in QCD, provides a significant additional source of suppression at transverse momenta which are high but within experimental reach.
- Received 18 July 2006
DOI:https://doi.org/10.1103/PhysRevLett.98.182301
©2007 American Physical Society