One-Loop Amplitudes in Supersymmetric QCD from MHV Vertices
High Energy Physics - Theory
2008-11-26 v3
Abstract
The Cachazo-Svrcek-Witten (CSW) rule for efficiently calculating gauge theory amplitudes is extended to N=1 supersymmetric QCD (SQCD), incorporating massless quarks, in a way preserving the manifest supersymmetry. Using this extended CSW rule, we obtain compact expressions of all the one-loop MHV amplitudes in SQCD including one or two external quark-antiquark (chiral-antichiral multiplets) pairs. The collinear sigularities of the five point amplitudes are investigated to confirm the consistency of the results.
Keywords
Cite
@article{arxiv.hep-th/0604210,
title = {One-Loop Amplitudes in Supersymmetric QCD from MHV Vertices},
author = {Hiroshi Kunitomo},
journal= {arXiv preprint arXiv:hep-th/0604210},
year = {2008}
}
Comments
43pages,5figures,PTPTex;v2 2references and related footnote are added;v3 English is improved, to appear in Prog. Theor. Phys