All-loop group-theory constraints for color-ordered SU(N) gauge-theory amplitudes
High Energy Physics - Theory
2015-05-30 v3 High Energy Physics - Phenomenology
Abstract
We derive constraints on the color-ordered amplitudes of the L-loop four-point function in SU(N) gauge theories that arise solely from the structure of the gauge group. These constraints generalize well-known group theory relations, such as U(1) decoupling identities, to all loop orders.
Keywords
Cite
@article{arxiv.1110.1859,
title = {All-loop group-theory constraints for color-ordered SU(N) gauge-theory amplitudes},
author = {Stephen G. Naculich},
journal= {arXiv preprint arXiv:1110.1859},
year = {2015}
}
Comments
12 pages, no figures; v2: added references, minor corrections; v3: minor clarifications, published version