More on correlators and contact terms in N = 4 SYM at order g 4

We compute two-point functions of chiral operators TrΦ for any k, in N = 4 supersymmetric SU(N) Yang-Mills theory. We find that up to the order g4 the perturbative corrections to the correlators vanish for all N . The cancellation occurs in a highly non trivial way, due to a complicated interplay between planar and non planar diagrams. In complete… CONTINUE READING