Tree-level Split Helicity Amplitudes in Ambitwistor Space

Details Tree-level Split Helicity Amplitudes in Ambitwistor Space Tree-level Split Helicity Amplitudes in Ambitwistor Space

2009-05-05

arxiv.org/abs/0905.0522v3

Phys.Rev.D80:125031,2009

Physics

High Energy Physics

High Energy Physics - Theory

20 pages, 16 figures; minor changes; clarifications added, 22 pages, 16 figures

Scientific paper

10.1103/PhysRevD.80.125031

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.

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