Constructing QCD one-loop amplitudes
High Energy Physics - Phenomenology
2009-08-07 v1
Abstract
In the context of constructing one-loop amplitudes using a unitarity bootstrap approach we discuss a general systematic procedure for obtaining the coefficients of the scalar bubble and triangle integral functions of one-loop amplitudes. Coefficients are extracted after examining the behaviour of the cut integrand as the unconstrained parameters of a specifically chosen parametersiation of the cut loop momentum approach infinity.
Cite
@article{arxiv.0802.1534,
title = {Constructing QCD one-loop amplitudes},
author = {Darren Forde},
journal= {arXiv preprint arXiv:0802.1534},
year = {2009}
}
Comments
5 Pages. To appear in the proceedings of the 8th International Symposium on Radiative Corrections (RADCOR 2007): Application of Quantum Field Theory to Phenomenology, Florence, Italy, 1-6 Oct 2007