Generalized unitarity for image super-amplitudes Original Research Article

We develop a manifestly supersymmetric version of the generalized unitarity cut method for calculating scattering amplitudes in image SYM theory. We illustrate the power of this method by computing the one-loop n-point NMHV super-amplitudes. The result confirms two conjectures which we made in Drummond, et al., . Firstly, we derive the compact, manifestly dual superconformally covariant form of the NMHV tree amplitudes for arbitrary number and types of external particles. Secondly, we show that the ratio of the one-loop NMHV to the MHV amplitude is dual conformal invariant.