Employing Helicity Amplitudes for Resummation in SCET
High Energy Physics - Phenomenology
2016-05-23 v1 Nuclear Theory
Abstract
Helicity amplitudes are the fundamental ingredients of many QCD calculations for multi-leg processes. We describe how these can seamlessly be combined with resummation in Soft-Collinear Effective Theory (SCET), by constructing a helicity operator basis for which the Wilson coefficients are directly given in terms of color-ordered helicity amplitudes. This basis is crossing symmetric and has simple transformation properties under discrete symmetries.
Keywords
Cite
@article{arxiv.1605.06226,
title = {Employing Helicity Amplitudes for Resummation in SCET},
author = {Ian Moult and Iain W. Stewart and Frank J. Tackmann and Wouter J. Waalewijn},
journal= {arXiv preprint arXiv:1605.06226},
year = {2016}
}
Comments
4 pages, 1 figures, to appear in the proceedings of the 51st Rencontres de Moriond (QCD and High Energy Interactions)