Conformal invariance of the planar beta-deformed N=4 SYM theory requires beta real

Federico Elmetti, Andrea Mauri, Silvia Penati +2

We study the \cal{N}=1 SU(N) SYM theory which is a marginal deformation of the \cal{N}=4 theory, with a complex deformation parameter β. We consider the large N limit and study per…