Factorization of correlation functions in coset conformal field theories
arXiv:hep-th/0002080
Abstract
We use the conformal Ward identities to study the structure of correlation functions in coset conformal field theories. For a large class of primary fields of arbitrary g/h theory a factorization anzatz is found.Corresponding correlation functions are explicitly expressed in terms of correlation functions of two independent WZNW theories for g and h.
8 pages,Latex,misprints corrected