Twistor-Space Recursive Formulation of Gauge-Theory Amplitudes

Details Twistor-Space Recursive Formulation of Gauge-Theory Amplitudes Twistor-Space Recursive Formulation of Gauge-Theory Amplitudes

2004-06-15

arxiv.org/abs/hep-th/0406133v2

Phys.Rev. D71 (2005) 045008

Physics

High Energy Physics

High Energy Physics - Theory

28 pages, 13 figures, ReVTeX; updated references, cosmetic changes to figures, minor changes to text

Scientific paper

10.1103/PhysRevD.71.045008

Using twistor space intuition, Cachazo, Svrcek and Witten presented novel diagrammatic rules for gauge-theory amplitudes, expressed in terms of maximally helicity-violating (MHV) vertices. We define non-MHV vertices, and show how to use them to give a recursive construction of these amplitudes. We also use them to illustrate the equivalence of various twistor-space prescriptions, and to determine the associated combinatoric factors.

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