One-Loop Gauge Theory Amplitudes with an Arbitrary Number of External Legs
High Energy Physics - Phenomenology
2008-02-03 v2 High Energy Physics - Theory
Abstract
We review recent progress in calculations of one-loop QCD amplitudes. By imposing the consistency requirements of unitarity and correct behavior as the momenta of two legs become collinear, we construct ansatze for one-loop amplitudes with an arbitrary number of external legs. For supersymmetric amplitudes, which can be thought of as components of QCD amplitudes, the cuts uniquely specify the amplitude.
Cite
@article{arxiv.hep-ph/9405248,
title = {One-Loop Gauge Theory Amplitudes with an Arbitrary Number of External Legs},
author = {Z. Bern and L. Dixon and D. Dunbar and D. A. Kosower},
journal= {arXiv preprint arXiv:hep-ph/9405248},
year = {2008}
}
Comments
Talk presented by Z.B. at Continuous Advances in QCD, Minneapolis, Feb. 18-20, 1994. 23 pages (including three figures), (minor errors corrected), SLAC--PUB--6490