Non-Supersymmetric Loop Amplitudes and MHV Vertices
High Energy Physics - Theory
2010-12-14 v2 High Energy Physics - Phenomenology
Abstract
We show how the MHV diagram description of Yang-Mills theories can be used to study non-supersymmetric loop amplitudes. In particular, we derive a compact expression for the cut-constructible part of the general one-loop MHV multi-gluon scattering amplitude in pure Yang-Mills theory. We show that in special cases this expression reduces to known amplitudes - the amplitude with adjacent negative-helicity gluons, and the five gluon non-adjacent amplitude. Finally, we briefly discuss the twistor space interpretation of our result.
Cite
@article{arxiv.hep-th/0412108,
title = {Non-Supersymmetric Loop Amplitudes and MHV Vertices},
author = {James Bedford and Andreas Brandhuber and Bill Spence and Gabriele Travaglini},
journal= {arXiv preprint arXiv:hep-th/0412108},
year = {2010}
}
Comments
31 pages, 5 figures, Typos Corrected