OPERATOR PRODUCT EXPANSIONS IN 4-DIMENSIONAL SUPERCONFORMAL FIELD-THEORIES

The operator product expansion in four-dimensional superconformal fiel d theory is discussed. It is demonstrated that the OPE takes a particu larly simple form for certain classes of operators. These are chiral o perators, principally of interest in theories with N = 1 or N = 2 supe rsymmetry, and analytic operators, of interest in N = 2 and N = 4. It is argued that the Green's functions of such operators can be determin ed up to constants.