The maximal D=4 supergravities

Abstract : All maximal supergravities in four space-time dimensions are presented. The ungauged Lagrangians can be encoded in an E_7(7)\Sp(56,R)/GL(28) matrix associated with the freedom of performing electric/magnetic duality transformations. The gauging is defined in terms of an embedding tensor which encodes the subgroup of E_7(7) that is realized as a local invariance. This embedding tensor may imply the presence of magnetic charges which require corresponding dual gauge fields. The latter can be incorporated by using a recently proposed formulation that involves tensor gauge fields in the adjoint representation of E_7(7). In this formulation the results take a universal form irrespective of the electric/magnetic duality basis. We present the general class of supersymmetric and gauge invariant Lagrangians and discuss a number of applications.
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Submitted on : Tuesday, May 15, 2007 - 11:36:59 AM
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Bernard de Wit, Henning Samtleben, Mario Trigiante. The maximal D=4 supergravities. Journal of High Energy Physics, Springer, 2007, 07 (0706), pp.049. ⟨10.1088/1126-6708/2007/06/049⟩. ⟨ensl-00146707⟩

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