A Googly Amplitude from the B-model in Twistor Space

Abstract

Recently it has been proposed that gluon scattering amplitudes in gauge theory can be computed from the D-instanton expansion of the topological B-model on P^{3|4}, although only maximally helicity violating (MHV) amplitudes have so far been obtained from a direct B-model calculation. In this note we compute the simplest non-MHV gluon amplitudes (++--- and +-+--) from the B-model as an integral over the moduli space of degree 2 curves in P^{3|4} and find perfect agreement with Yang-Mills theory.

12 pages. v3: minor typos fixed

References in corpus (2)

• Multi-Parton Amplitudes in Gauge Theories
• An Alternative String Theory in Twistor Space for N=4 Super-Yang-Mills

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