N⩾=2 supersymmetric Chern-Simons terms as d=3 extended conformal supergravity

Abstract
The authors present supersymmetric Chern-Simons terms for N>or=2 extended supergravity in d=3 dimensions and show that they are the gauge actions of N>or=2 conformal supergravity. In these models, gravitational and gauge Chern-Simons terms (which, when coupled to other systems, give rise to self-dual vectors and/or topological mass terms) are unified by supersymmetry.