Loop amplitudes in gauge theories: modern analytic approaches
High Energy Physics - Theory
2015-05-20 v2 High Energy Physics - Phenomenology
Abstract
This article reviews on-shell methods for analytic computation of loop amplitudes, emphasizing techniques based on unitarity cuts. Unitarity techniques are formulated generally but have been especially useful for calculating one-loop amplitudes in massless theories such as Yang-Mills theory, QCD, and QED.
Cite
@article{arxiv.1012.4493,
title = {Loop amplitudes in gauge theories: modern analytic approaches},
author = {Ruth Britto},
journal= {arXiv preprint arXiv:1012.4493},
year = {2015}
}
Comments
34 pages. Invited review for a special issue of Journal of Physics A devoted to "Scattering Amplitudes in Gauge Theories." v2: typesetting macro error fixed