SUPERSPACE FORMULATION FOR THE MASTER EQUATION

It is shown that the quantum master equation of the field-antifield qu antization method at one-loop order can be translated into the require ment of a superfield structure for the action. The Pauli-Villars regul arization is implemented in this BRST superspace and the case of anoma lous gauge theories is investigated. The quantum action, including Wes s-Zumino terms, shows up as one of the components of a superfield that includes the ERST anomalies in the other component. The example of W2 quantum gravity is also discussed.