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MiS Preprint
56/2000
Hidden symmetries of supersymmetric p-form gauge theories
Friedemann Brandt
Abstract
Field theories with p-form gauge potentials can possess "hidden" symmetries leaving the field strengths invariant on-shell without being gauge symmetries on-shell. The relevance of such symmetries to supersymmetric models is discussed. They provide central charges of supersymmetry algebras, play a particular role in duality relations, and lead to peculiar interactions. A multiplet of N=2 supersymmetry in four dimensions with two hidden central charges is presented.