Medium effects on the viscosities of a pion gas
High Energy Physics - Phenomenology
2013-05-30 v2 Nuclear Theory
Abstract
The bulk and shear viscosities of a pion gas is obtained by solving the relativistic transport equation in the Chapman-Enskog approximation. In-medium effects are introduced in the cross-section through one-loop self-energies in the propagator of the exchanged and mesons. The effect of early chemical freeze-out in heavy ion collisions is implemented through a temperature dependent pion chemical potential. These are found to affect the temperature dependence of the bulk and shear viscosities significantly.
Keywords
Cite
@article{arxiv.1303.6408,
title = {Medium effects on the viscosities of a pion gas},
author = {Sukanya Mitra and Sourav Sarkar},
journal= {arXiv preprint arXiv:1303.6408},
year = {2013}
}