Logarithmic Operators and Dynamical Extention of The Symmetry Group in the Bosonic SU(2)_0 and SUSY SU(2)_2 WZNW Models

Abstract

We study the operator product expansion in the bosonic $SU(2{)}_0$ and SUSY $SU(2{)}_2$ WZNW models. We find that these OPEs contain both logarithmic operators and new conserved currents, leading to an extension of the symmetry group.

arXiv comment16 pages, Latex

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