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Twistor diagrams for all tree amplitudes in gauge theory: a helicity-independent formalism

Andrew Hodges
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Abstract

We give a new formalism for pure gauge-theoretic scattering at tree-amplitude level. We first describe a generalization of the Britto-Cachazo-Feng recursion relation in which a significant restriction is removed. We then use twistor diagrams to express all tree amplitudes in a form independent of helicity. A formal procedure involving anticommuting elements is required. We illustrate the results with specific calculations of interest, up to 8 interacting fields.

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Andrew Hodges. 2006-01-11. Twistor diagrams for all tree amplitudes in gauge theory: a helicity-independent formalism. https://arxiv.org/abs/hep-th/0512336

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