Simple Physical Approach to Thermal Cutting Rules
High Energy Physics - Phenomenology
2009-10-28 v2 High Energy Physics - Theory
Abstract
A first-principles derivation is given of the imaginary part of a Green's function in real-time thermal field theory. The analysis and its conclusions are simpler than in the usual circled-vertex formalism. The relationship to Cutkosky-like cutting rules is explained.
Keywords
Cite
@article{arxiv.hep-ph/9606426,
title = {Simple Physical Approach to Thermal Cutting Rules},
author = {P V Landshoff},
journal= {arXiv preprint arXiv:hep-ph/9606426},
year = {2009}
}
Comments
9 pages, plain tex, 5 figures embedded with epsf -- 2 typos corrected