Cancellation of soft and collinear divergences in noncommutative QED
High Energy Physics - Theory
2008-11-26 v1
Abstract
In this paper, we investigate the behavior of non-commutative IR divergences and will also discuss their cancellation in the physical cross sections. The commutative IR (soft) divergences existing in the non-planar diagrams will be examined in order to prove an all order cancellation of these divergences using the Weinberg's method. In non-commutative QED, collinear divergences due to triple photon splitting vertex, were encountered, which are shown to be canceled out by the non-commutative version of KLN theorem. This guarantees that there is no mixing between the Collinear, soft and non-commutative IR divergences.
Keywords
Cite
@article{arxiv.hep-th/0609181,
title = {Cancellation of soft and collinear divergences in noncommutative QED},
author = {B. Mirza and M. Zarei},
journal= {arXiv preprint arXiv:hep-th/0609181},
year = {2008}
}