EFFICIENT ANALYTIC COMPUTATION OF HIGHER-ORDER QCD AMPLITUDES
High Energy Physics - Phenomenology
2016-09-01 v1 High Energy Physics - Theory
Abstract
We review techniques simplifying the analytic calculation of one-loop QCD amplitudes with many external legs, for use in next-to-leading-order corrections to multi-jet processes. Particularly useful are the constraints imposed by perturbative unitarity, collinear singularities and a supersymmetry-inspired organization of helicity amplitudes. Certain sequences of one-loop helicity amplitudes with an arbitrary number of external gluons have been obtained using these constraints.
Cite
@article{arxiv.hep-ph/9503261,
title = {EFFICIENT ANALYTIC COMPUTATION OF HIGHER-ORDER QCD AMPLITUDES},
author = {Z. Bern and G. Chalmers and L. Dixon and D. C. Dunbar and D. A. Kosower},
journal= {arXiv preprint arXiv:hep-ph/9503261},
year = {2016}
}
Comments
Talk given at Beyond the Standard Model IV, December 13-18 1994, Lake Tahoe, CA. Latex, 4 pages, no figures.