TORSION AND GAUGE-INVARIANT MASSIVE ELECTRODYNAMICS

We study electrodynamics in Einstein-Cartan space-time, that is, in sp ace-time with torsion, and show an analogy with the Chern-Simons gauge -invariant massive electrodynamics. In our case, however, there is no arbitrary parameter, the torsion Q playing the role of the Chern-Simon s parameter kappa. This leads to bounds on the photon mass, charge, an d torsion coupling.