BCFW recursion for off-shell gluons
High Energy Physics - Phenomenology
2015-06-19 v2 High Energy Physics - Theory
Abstract
It is shown how tree-level multi-gluon helicity amplitudes with an arbitrary number of off-shell external gluons can be calculated via BCFW recursion. Compact expressions for helicity amplitudes for scattering processes of three and four gluons, with up to three of them off-shell, are presented. Also, maximum-helicity-violating configurations are identified for up to two off-shell gluons, and the expressions for their helicity amplitudes for an arbitrary number of on-shell gluons are derived.
Keywords
Cite
@article{arxiv.1404.7818,
title = {BCFW recursion for off-shell gluons},
author = {A. van Hameren},
journal= {arXiv preprint arXiv:1404.7818},
year = {2015}
}
Comments
24 pages, report number corrected