Multiple Scattering Expansion of the Self-Energy at Finite Temperature
High Energy Physics - Phenomenology
2008-11-26 v1 Nuclear Theory
Abstract
An often used rule that the thermal correction to the self-energy is the thermal phase-space times the forward scattering amplitude from target particles is shown to be the leading term in an exact multiple scattering expansion. Starting from imaginary-time finite-temperature field theory, a rigorous expansion for the retarded self-energy is derived. The relationship to the thermodynamic potential is briefly discussed.
Keywords
Cite
@article{arxiv.hep-ph/9802246,
title = {Multiple Scattering Expansion of the Self-Energy at Finite Temperature},
author = {Sangyong Jeon and Paul J. Ellis},
journal= {arXiv preprint arXiv:hep-ph/9802246},
year = {2008}
}
Comments
33 pages. Uses ReVTeX and epsf. 8 figures