Color-dressed recursive relations for multi-parton amplitudes
High Energy Physics - Phenomenology
2014-11-18 v1 High Energy Physics - Theory
Abstract
Remarkable progress inspired by twistors has lead to very simple analytic expressions and to new recursive relations for multi-parton color-ordered amplitudes. We show how such relations can be extended to include color and present the corresponding color-dressed formulation for the Berends-Giele, BCF and a new kind of CSW recursive relations. A detailed comparison of the numerical efficiency of the different approaches to the calculation of multi-parton cross sections is performed.
Cite
@article{arxiv.hep-ph/0607057,
title = {Color-dressed recursive relations for multi-parton amplitudes},
author = {Claude Duhr and Stefan Hoeche and Fabio Maltoni},
journal= {arXiv preprint arXiv:hep-ph/0607057},
year = {2014}
}
Comments
31 pages, 4 figures, 6 tables