The Factorisation of the t-channel Pole in Quark-Gluon Scattering
High Energy Physics - Phenomenology
2014-11-20 v1
Abstract
By exploring the scattering of specific helicity states in quark-gluon scattering at tree level we show explicitly that the t-channel pole can be described exactly as a contraction of two local currents. Furthermore, we demonstrate that out of eight non-zero helicity possibilities, only two suppressed channels have contributions that are not pure, factorised t-channel poles. We thereby extract a gauge-invariant definition for the t-channel current generated by the scattering of a gluon. This offers a slight improvement in the description of gluon scattering in the framework of arXiv:0908.2786 for the prediction of n-jet rates at hadron colliders.
Keywords
Cite
@article{arxiv.0910.5113,
title = {The Factorisation of the t-channel Pole in Quark-Gluon Scattering},
author = {Jeppe R. Andersen and Jennifer M. Smillie},
journal= {arXiv preprint arXiv:0910.5113},
year = {2014}
}
Comments
10 pages, 4 figures