Five-dimensional Supergravity in N = 1/2 Superspace
arXiv:1909.09208 · doi:10.1007/JHEP03(2020)098
Abstract
We construct 5D, N = 1 supergravity in a 4D, N = 1 superspace with an extra bosonic coordinate. This represents four of the supersymmetries and the associated Poincaré symmetries manifestly. The remaining four supersymmetries and the rest of the Poincaré symmetries are represented linearly but not manifestly. In the linearized approximation, the action reduces to the known superspace result. As an application of the formalism, we construct the invariant in this superspace.
arXiv commentPublished version. Contains improvements over v1 including relation to new-minimal supergravity and various formulations of off-shell 5D, N=1 supergravity
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