Axion-photon-mixing dark matter conversion mediated by torsion mass constrained by the Barbero-Immirzi parameter

Zhi-Fu Gao, Luiz C. Garcia de Andrade

In the Standard Model\,(SM) of particle physics, photon-torsion mixing is extended to include the Einstein-Cartan portal to dark-photon-axion-torsion mixing beyond the Standard Mod…