BRST QUANTIZATION OF A SELF-INTERACTING ANTISYMMETRIC

In this paper we present the derivation of covariant representations for the S matrix of the self-interacting antisymmetric tensor field in the framework of the BFV approach for systems with dependent constraints [14]. We shall see that some of the obtained representations are identical to ones already known [13]. This shows that correct results can be obtained by means of BRST quantization. In addition, we also obtain a number of manifestly covariant expressions for the S matrix.