Dual conformal properties of six-dimensional maximal super Yang-Mills amplitudes
We demonstrate that the tree-level amplitudes of maximal super-Yang-Mills theory in six dimensions, when stripped of their
overall momentum and supermomentum delta functions, are covariant with respect to the six-dimensional dual conformal group.
Using the generalized unitarity method, we demonstrate that this property is also present for loop amplitudes. Since the six-dimensional
amplitudes can be interpreted as massive four-dimensional ones, this implies that the six-dimensional symmetry is also present
in the massively regulated four-dimensional super-Yang-Mills amplitudes.