All-plus helicity off-shell gauge invariant multigluon amplitudes at one loop
High Energy Physics - Phenomenology
2021-03-05 v2
Abstract
We calculate one loop scattering amplitudes for arbitrary number of positive helicity on-shell gluons and one off-shell gluon treated within the quasi-multi Regge kinematics. The result is fully gauge invariant and possesses the correct on-shell limit. Our method is based on embedding the off-shell process, together with contributions needed to retain gauge invariance, in a bigger fully on-shell process with auxiliary quark or gluon line.
Keywords
Cite
@article{arxiv.2008.07916,
title = {All-plus helicity off-shell gauge invariant multigluon amplitudes at one loop},
author = {Etienne Blanco and Andreas van Hameren and Piotr Kotko and Krzysztof Kutak},
journal= {arXiv preprint arXiv:2008.07916},
year = {2021}
}
Comments
20 pages; typos corrected, labels/normalization homogenized