## Massive 3D Supergravity

##### Authors
Andringa, Roel
Bergshoeff, Eric A.
de Roo, Mees
Hohm, Olaf
Sezgin, Ergin
Townsend, Paul K.
##### Description
We construct the N=1 three-dimensional supergravity theory with cosmological, Einstein-Hilbert, Lorentz Chern-Simons, and general curvature squared terms. We determine the general supersymmetric configuration, and find a family of supersymmetric adS vacua with the supersymmetric Minkowski vacuum as a limiting case. Linearizing about the Minkowski vacuum, we find three classes of unitary theories; one is the supersymmetric extension of the recently discovered massive 3D gravity'. Another is a new topologically massive supergravity' (with no Einstein-Hilbert term) that propagates a single (2,3/2) helicity supermultiplet.
Comment: 39 pages, 2 figures; v2: minor corrections, refs. added; v3: version to appear in CQG
##### Keywords
High Energy Physics - Theory