We propose a superfield method to construct off-shell actions for N -extended conformal supergravity theories in three space-time dimensions. It makes use of the superform technique to engineer supersymmetric invariants. The method is specifically applied to the case of N=1 conformal supergravity and provides a new realization for the actions of conformal and topologically massive supergravities. © 2013 SISSA, Trieste, Italy.
Kuzenko, S. M., & Tartaglino-Mazzucchelli, G. (2013). Conformal supergravities as Chern-Simons theories revisited. The Journal of High Energy Physics, 2013(3), 24pp. https://doi.org/10.1007/JHEP03(2013)113