Journal of High Energy Physics
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Half-maximal, N = 4, sectors of D = 4 N = 8 supergravity with a dyonic ISO(7) gauging are investigated. We focus on a half-maximal sector including three vector multiplets, that arises as a certain SO(3)R-invariant sector of the full theory. We discuss the embedding of this sector into the largest half-maximal sector of the N = 8 supergravity retaining six vector multiplets. We also provide its canonical N = 4 formulation and show that, from this perspective, our model leads in its own right to a new explicit gauging of N = 4 supergravity. Finally, expressions for the restricted duality hierarchy are given and the vacuum structure is investigated. Five new non-supersymmetric AdS vacua are found numerically. The previously known N = 2 and N = 3 AdS vacua are also contained in our N = 4 model. Unlike when embedded in previously considered sectors with fewer fields, these vacua exhibit their full N = 2 and N = 3 supersymmetry within our N = 4 model.
Guarino, A., Tarrío, J. & Varela, O. J. High Energ. Phys. (2019) 2019: 143. https://doi.org/10.1007/JHEP11(2019)143