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Lauf, Frederik; Sachs, Ivo (2018): Complete superspace classification of three-dimensional Chern-Simons-matter theories coupled to supergravity. In: Journal of High Energy Physics, No. 2, 154
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For extended N <= 8 supersymmetry we classify all possible gauge groups for a scalar multiplet allowed by the algebras of global and local supersymmetry in three dimensions. A detailed discussion of supersymmetry enhancement is included. For the corresponding topologically massive gravity with negative cosmological constant the mass of the graviton is determined algebraically as a function of N and the possible gauge couplings.