paper

New Gauged N=8, D=4 Supergravities

arXiv:hep-th/0204156 · doi:10.1088/0264-9381/20/24/013

Abstract

New gaugings of four dimensional N=8 supergravity are constructed, including one which has a Minkowski space vacuum that preserves N=2 supersymmetry and in which the gauge group is broken to . Previous gaugings used the form of the ungauged action which is invariant under a rigid symmetry and promoted a 28-dimensional subgroup ( or the non-semi-simple contraction ) to a local gauge group. Here, a dual form of the ungauged action is used which is invariant under instead of and new theories are obtained by gauging 28-dimensional subgroups of . The gauge groups are non-semi-simple and are different real forms of the groups, denoted , and the new theories have a rigid SU(2) symmetry. The five dimensional gauged N=8 supergravities are dimensionally reduced to D=4. The gauge theories reduce, after a duality transformation, to the gauging while the gauge theory reduces to the gauge theory. The new theories are related to the old ones via an analytic continuation. The non-semi-simple gaugings can be dualised to forms with different gauge groups.

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