Maxwell field with Torsion
  We propose a generalizing gauge-invariant model of propagating torsion which couples to the Maxwell field and to charged particles. As a result we have an Abelian gauge invariant action which leads to a theory with nonzero torsion and which is consistent with available experimental data. 
R. Fresneda, M. C. Baldiotti, T. S. Pereira
gr-qc hep-th