THE NONMINIMAL SCALAR MULTIPLET - DUALITY, SIGMA-MODEL, BETA-FUNCTION

We compute in superspace the one-loop beta-function for the non-linear sigma-model defined in terms of the non-minimal scalar multiplet, The recently proposed quantization of this complex linear superfield, vie wed as the field strength of an unconstrained gauge spinor superfield, allows one to efficiently handle the infinite tower of ghosts via the Batalin-Vilkovisky formalism, We find that the classical duality of t he non-minimal scalar and chiral multiplets is maintained at the quant um one-loop level. (C) 1998 Published by Elsevier Science B.V.