Stress-energy tensor and U(1)-current operator product expansions in conformal QFT

The general contribution of the conserved traceless stress-energy tensor θμν to the conformal invariant operator product expansions of two stress-energy tensors and two conserved U(1)-currents Jμ are evaluated. It is shown that in every conformal invariant theory the 3-point functions <θμν(x) θαβ(y)θρτ(z)>o and (o) can be expressed in terms of the corresponding functions in the models of a free massless scalar, spinor or free Maxwell field and that they depend only on two (one) arbitrary parameters. These parameters as well as the coefficients of the 2-point functions cannot be determined without additional assumptions. 15 refs