Massive Quark-Gluon Scattering Amplitudes at Tree Level
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
Results for four-, five-, and six-parton tree amplitudes for massive quark-antiquark scattering with gluons are calculated using the recursion relations of Britto, Cachazo, Feng, and Witten. The required diagrams are generated using shifts of the momenta of a pair of massless legs to complex values. Checks verifying the calculations are described, and a simple formula for the shifted spinors of an internal gluon is presented.
Cite
@article{arxiv.0710.1300,
title = {Massive Quark-Gluon Scattering Amplitudes at Tree Level},
author = {Anthony Hall},
journal= {arXiv preprint arXiv:0710.1300},
year = {2008}
}
Comments
24 pages, 6 figures