Comments on MHV Tree Amplitudes for Conformal Supergravitons from Topological B-Model

Abstract

We use the twistor-string theory on the B-model of CP^{3|4} to compute the maximally helicity violating(MHV) tree amplitudes for conformal supergravitons. The correlator of a bilinear in the affine Kac-Moody current(Sugawara stress-energy tensor) can generate these amplitudes. We compare with previous results from open string version of twistor-string theory. We also compute the MHV tree amplitudes for both gravitons and gluons from the correlators between stress-energy tensor and current.

27pp

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• A Deformation of Twistor Space and a Chiral Mass Term in N=4 Super Yang-Mills Theory
• Holonomies of gauge fields in twistor space 2: Hecke algebra, diffeomorphism, and graviton amplitudes
• New Worldsheet Formulae for Conformal Supergravity Amplitudes