One Loop Conformal Invariance of the Superstring in an AdS_5 x S^5 Background
arXiv:hep-th/0210064 · doi:10.1088/1126-6708/2002/12/042
Abstract
It is proven that the pure spinor superstring in an AdS_5 x S^5 background remains conformally invariant at one loop level in the sigma model perturbation theory.
14 pages harvmac