Tree-level Split Helicity Amplitudes in Ambitwistor Space
arXiv:0905.0522 · doi:10.1103/PhysRevD.80.125031
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.
20 pages, 16 figures; minor changes; clarifications added, 22 pages, 16 figures
References in corpus (7)
- A note on dual superconformal symmetry of the N=4 super Yang-Mills S-matrix
- The S-Matrix in Twistor Space
- Generating Tree Amplitudes in N=4 SYM and N=8 SG
- All tree-level amplitudes in N=4 SYM
- Tree-Level Amplitudes in N=8 Supergravity
- Twistor diagram recursion for all gauge-theoretic tree amplitudes
- Scattering amplitudes for eight gauge fields