Multi-gluon helicity amplitudes with one off-shell leg within high energy factorization
High Energy Physics - Phenomenology
2013-01-18 v2
Abstract
Basing on the Slavnov-Taylor identities, we derive a new prescription to obtain gauge invariant tree-level scattering amplitudes for the process g*g->Ng within high energy factorization. Using the helicity method, we check the formalism up to several final state gluons, and we present analytical formulas for the the helicity amplitudes for N=2. We also compare the method with Lipatov's effective action approach.
Keywords
Cite
@article{arxiv.1207.3332,
title = {Multi-gluon helicity amplitudes with one off-shell leg within high energy factorization},
author = {Andreas van Hameren and Piotr Kotko and Krzysztof Kutak},
journal= {arXiv preprint arXiv:1207.3332},
year = {2013}
}
Comments
25 pages, quite a few figures, an appendix added, typos corrected