N = 2 central charge superspace and a minimal supergravity multiplet

Abstract : 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.
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https://hal.univ-antilles.fr/hal-00769899
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Submitted on : Thursday, January 3, 2013 - 8:22:46 PM
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Gernot Akemann, Richard Grimm, Maximilian F. Hasler, Carl Herrmann. N = 2 central charge superspace and a minimal supergravity multiplet. Classical and Quantum Gravity, IOP Publishing, 1999, 16 (5), pp.1617-1623. ⟨10.1088/0264-9381/16/5/311⟩. ⟨hal-00769899⟩

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