Integral Coefficients for One-Loop Amplitudes
High Energy Physics - Phenomenology
2008-11-26 v1 High Energy Physics - Theory
Abstract
We present a set of algebraic functions for evaluating the coefficients of the scalar integral basis of a general one-loop amplitude. The functions are derived from unitarity cuts, but the complete cut-integral procedure has been carried out in generality so that it never needs to be repeated. Where the master integrals are known explicitly, the results here can be used as a black box with tree-level amplitudes as input and one-loop amplitudes as output.
Keywords
Cite
@article{arxiv.0711.4284,
title = {Integral Coefficients for One-Loop Amplitudes},
author = {Ruth Britto and Bo Feng},
journal= {arXiv preprint arXiv:0711.4284},
year = {2008}
}
Comments
32 pages, 1 figure