Tree-level Split Helicity Amplitudes in Ambitwistor Space
High Energy Physics - Theory
2010-01-07 v3
Abstract
We study all tree-level split helicity gluon amplitudes by using the recently proposed BCFW recursion relation and Hodges diagrams in ambitwistor space. We pick out the contributing diagrams and find that all of them can be divided into triangles in a suitable way. We give the explicit expressions for all of these amplitudes. As an example, we reproduce the six gluon split NMHV amplitudes in momentum space.
Keywords
Cite
@article{arxiv.0905.0522,
title = {Tree-level Split Helicity Amplitudes in Ambitwistor Space},
author = {Bin Chen and Jun-Bao Wu},
journal= {arXiv preprint arXiv:0905.0522},
year = {2010}
}
Comments
20 pages, 16 figures; minor changes; clarifications added, 22 pages, 16 figures