A Googly Amplitude from the B-model in Twistor Space
نویسندگان
چکیده
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, 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 and find perfect agreement with Yang-Mills theory.
منابع مشابه
All Googly Amplitudes from the B-model in Twistor Space
It has recently been proposed that the D-instanton expansion of the open topological B-model on P is equivalent to the perturbative expansion of N = 4 super Yang-Mills theory in four dimensions. In this note we extend the results of hep-th/0402016 and recover the gauge theory results for all n-point googly amplitudes by computing the integral over the moduli space of curves of degree n− 3 in P .
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