Infrared Divergences from Soft and Collinear Gauge Bosons
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
I review the Lee-Nauenberg thereom and discuss its inclusion of photons which are disconnected at the level of the S-matrix but connected at the level of the cross-section when there are initial and final state charged particles. I then expose a new set of soft collinear divergences in massless gauge theories which are omitted in the standard Lee-Nauenberg approach. It seems that highly questionable assumptions are needed to obtain finite cross-sections.
Keywords
Cite
@article{arxiv.0709.3935,
title = {Infrared Divergences from Soft and Collinear Gauge Bosons},
author = {Paul Jameson},
journal= {arXiv preprint arXiv:0709.3935},
year = {2008}
}
Comments
6 pages, 6 .jpg figures. Talk given at the Ninth Workshop on Non-Perturbative QCD, Paris, June 2007