Damping rates for moving particles in hot QCD
High Energy Physics - Phenomenology
2009-10-22 v1
Abstract
Using a program of perturbative resummation I compute the damping rates for fields at nonzero spatial momentum to leading order in weak coupling in hot . Sum rules for spectral densities are used to simplify the calculations. For massless fields the damping rate has an apparent logarithmic divergence in the infrared limit, which is cut off by the screening of static magnetic fields (``magnetic mass''). This demonstrates how at high temperature even perturbative quantities are sensitive to nonperturbative phenomenon.
Keywords
Cite
@article{arxiv.hep-ph/9302242,
title = {Damping rates for moving particles in hot QCD},
author = {R. D. Pisarski},
journal= {arXiv preprint arXiv:hep-ph/9302242},
year = {2009}
}
Comments
LaTeX file, 24 pages, BNL-P-1/92 (December, 1992)