A Googly Amplitude from the B-model in Twistor Space
High Energy Physics - Theory
2009-11-10 v3 High Energy Physics - Phenomenology
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.
Keywords
Cite
@article{arxiv.hep-th/0402016,
title = {A Googly Amplitude from the B-model in Twistor Space},
author = {Radu Roiban and Marcus Spradlin and Anastasia Volovich},
journal= {arXiv preprint arXiv:hep-th/0402016},
year = {2009}
}
Comments
12 pages. v3: minor typos fixed