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\(N=2\) central charge superspace and a minimal supergravity multiplet. (English) Zbl 0935.81074

Summary: We extend the notion of central charge superspace to the case of local supersymmetry. Gauged central charge transformations are identified as diffeomorphisms on the same footing as spacetime diffeomorphisms and local supersymmetry transformations. Given the general structure we then proceed to the description of a particular vector-tensor supergravity multiplet of \(24+24\) components, identified by means of rather radical constraints.

MSC:

81T60 Supersymmetric field theories in quantum mechanics
83E50 Supergravity
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