Summing one-loop graphs in a theory with broken symmetry
High Energy Physics - Phenomenology
2009-10-22 v1
Abstract
The method suggested by Lowell Brown for calculating multi-particle threshold amplitudes is extended to the one-loop level in scalar theories with broken reflection symmetry. A result for the threshold amplitude for multiparticle production is derived. It is also shown that the tree-level amplitude for 2 on-mass-shell particles producing particles vanishes at the kinematical threshold for
Cite
@article{arxiv.hep-ph/9209287,
title = {Summing one-loop graphs in a theory with broken symmetry},
author = {B. H. Smith},
journal= {arXiv preprint arXiv:hep-ph/9209287},
year = {2009}
}
Comments
8 pages, LaTeX, TPI-MINN-92/50-T