Equilibration in Quark Gluon Plasma
Nuclear Theory
2011-08-11 v1
Abstract
The hydrodynamic expansion rate of quark gluon plasma (QGP) is evaluated and compared with the scattering rate of quarks and gluons within the system. Partonic scattering rates evaluated within the ambit of perturbative Quantum Choromodynamics (pQCD) are found to be smaller than the expansion rate evaluated with ideal equation of state (EoS) for the QGP. This indicate that during the space-time evolution the system remains out of equilibrium. Enhancement of pQCD cross sections and a more realistic EoS keep the partons closer to the equilibrium.
Cite
@article{arxiv.0912.4089,
title = {Equilibration in Quark Gluon Plasma},
author = {Santosh K Das and Jan-e Alam and Payal Mohanty},
journal= {arXiv preprint arXiv:0912.4089},
year = {2011}
}
Comments
To be published in the Quark Matter 2008 poster proceedings