Publication : t11/013

Abstract:
Although systematic the Feynman graph approach to perturbative calculations in gauge and gravity is far from being optimal. Combining insights from string theory and on-shell unitarity methods, new approaches have been designed. In the case of maximally supersymmetric theories, they have led to the discovery of unsuspected similarities in the structure of perturbative gauge theory and supergravity. We will present these new approaches and discuss the consequences on ultraviolet question of maximal supergravity.

ichep2010.pdf