Anomalous Transport Processes in Anisotropically Expanding Quark-Gluon Plasmas
High Energy Physics - Phenomenology
2008-11-26 v2 Nuclear Theory
Abstract
We derive an expression for the anomalous viscosity in an anisotropically expanding quark-gluon-plasma, which arises from interactions of thermal partons with dynamically generated color fields. The anomalous viscosity dominates over the collisional viscosity for large velocity gradients or weak coupling. This effect may provide an explanation for the apparent ``nearly perfect'' liquidity of the matter produced in nuclear collisions at RHIC without the assumption that it is a strongly coupled state.
Keywords
Cite
@article{arxiv.hep-ph/0608270,
title = {Anomalous Transport Processes in Anisotropically Expanding Quark-Gluon Plasmas},
author = {Masayuki Asakawa and Steffen A. Bass and Berndt Müller},
journal= {arXiv preprint arXiv:hep-ph/0608270},
year = {2008}
}
Comments
31 pages, 1 figure, some typos in published version are corrected