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arXiv · hep-th/0406133

Twistor-Space Recursive Formulation of Gauge-Theory Amplitudes

I. Bena·Z. Bern·D. A. Kosower
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Abstract

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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I. Bena, Z. Bern, D. A. Kosower. 2004-07-09. Twistor-Space Recursive Formulation of Gauge-Theory Amplitudes. https://doi.org/10.1103/physrevd.71.045008

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