A Note on the IR Finiteness of Fermion Loop Diagrams
High Energy Physics - Phenomenology
2013-06-21 v2 High Energy Physics - Theory
Abstract
We show that the most general fermion loop diagram is finite in both soft and collinear regions and therefore, it's IR finite. We use this result to express the IR singular structure of a box scalar integral in terms of the IR singular structure of reduced triangle scalar integrals.
Keywords
Cite
@article{arxiv.1008.4792,
title = {A Note on the IR Finiteness of Fermion Loop Diagrams},
author = {Ambresh Shivaji},
journal= {arXiv preprint arXiv:1008.4792},
year = {2013}
}
Comments
7 pages, 3 figures and 1 table. An application to the main result is included