N=4 SYM NMHV Loop Amplitude in Superspace
High Energy Physics - Theory
2009-11-11 v3
Abstract
Here we construct N=4 SuperYang-Mills 6 point NMHV loop amplitude (amplitudes with three minus helicities) as a full superspace form, using the anti-commuting spinor variables. Amplitudes with different external particle and cyclic helicity ordering are then just a particular expansion of this fermionic variable. We've verified this by explicit expansion obtaining amplitudes with two gluino calculated before. We give results for all gluino and all scalar scattering amplitude. A discussion of using MHV vertex approach to obtain these amplitudes are given, which implies a simplification for general loop amplitudes.
Keywords
Cite
@article{arxiv.hep-th/0507117,
title = {N=4 SYM NMHV Loop Amplitude in Superspace},
author = {Yu-tin Huang},
journal= {arXiv preprint arXiv:hep-th/0507117},
year = {2009}
}
Comments
14 pages, 2 figures: new reference and comments added