Inverse Soft Factors and Grassmannian Residues
High Energy Physics - Theory
2011-02-16 v2
Abstract
The action of inverse soft factors on scattering amplitudes in N=4 SYM is shown to take a remarkably simple form in momentum twistor space. This is used to identify individual residues of the grassmannian with primitive leading singularities at NMHV and N^2MHV and to derive explicit expressions in terms of momentum twistors.
Keywords
Cite
@article{arxiv.1008.3110,
title = {Inverse Soft Factors and Grassmannian Residues},
author = {Mathew Bullimore},
journal= {arXiv preprint arXiv:1008.3110},
year = {2011}
}
Comments
32 pages, 24 figures, Minor corrections