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

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

2005-12-29

arxiv.org/abs/hep-th/0512336v2

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, pdf only. Minor corrections made and citation added, January 2006

Scientific paper

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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