Pion damping width from SU(2) x SU(2) NJL model
Nuclear Theory
2009-11-10 v1
Abstract
Within the framework of the NJL model, we investigate the modification of the pion damping width in a hot pion gas for temperatures ranging from 0 to 180 MeV. The pion is found to broaden noticeably at T > 60 MeV. Near the chiral phase transition T ~ 180 MeV, the pion width is saturated and amounts to 70 MeV. The main contribution to the width comes from pion-pion collisions. Other contributions are found negligibly small.
Keywords
Cite
@article{arxiv.nucl-th/0303034,
title = {Pion damping width from SU(2) x SU(2) NJL model},
author = {D. Blaschke and M. K. Volkov and V. L. Yudichev},
journal= {arXiv preprint arXiv:nucl-th/0303034},
year = {2009}
}
Comments
LaTeX2e, 13 pages, 2 figures