A compact representation of the 2 photon 3 gluon amplitude
High Energy Physics - Phenomenology
2009-11-10 v2
Abstract
A compact representation of the loop amplitude gamma gamma ggg -> 0 is presented. The result has been obtained by using helicity methods and sorting with respect to an irreducible function basis. We show how to convert spinor representations into a field strength representation of the amplitude. The amplitude defines a background contribution for Higgs boson searches at the LHC in the channel H -> gamma gamma + jet which was earlier extracted indirectly from the one-loop representation of the 5-gluon amplitude.
Cite
@article{arxiv.hep-ph/0312334,
title = {A compact representation of the 2 photon 3 gluon amplitude},
author = {T. Binoth and J. Ph. Guillet and F. Mahmoudi},
journal= {arXiv preprint arXiv:hep-ph/0312334},
year = {2009}
}
Comments
15 pages Latex, 6 eps files included, revised version