Dissipation and elliptic flow at RHIC
Nuclear Theory
2009-11-10 v1
Abstract
We compare elliptic flow evolution from ideal hydrodynamics and covariant parton transport theory, and show that, for conditions expected at RHIC, dissipation significantly reduces elliptic flow even for extreme parton cross sections and/or densities sigma_gg * dN/d\eta(b=0) ~ 45 mb * 1000. The difference between transport and hydrodynamic elliptic flow is established rather early during the evolution of the system, but the buildup of elliptic flow is surprisingly insensitive to the choice of the initial (formation or thermalization) time in both models.
Keywords
Cite
@article{arxiv.nucl-th/0404065,
title = {Dissipation and elliptic flow at RHIC},
author = {Denes Molnar and Pasi Huovinen},
journal= {arXiv preprint arXiv:nucl-th/0404065},
year = {2009}
}
Comments
4 pages, 3 EPS figs