Four-point functions in N=2 superconformal field theories
arXiv:hep-th/0001138 · doi:10.1016/S0550-3213(00)00218-2
Abstract
Four-point correlation functions of hypermultiplet bilinear composites are analysed in N=2 superconformal field theory using the superconformal Ward identities and the analyticity properties of the composite operator superfields. It is shown that the complete amplitude is determined by a single arbitrary function of the two conformal cross-ratios of the space-time variables.
36 pp LaTeX2e, uses amsfonts, amssymb. Some references added