Gravitational Production of Completely Dark Photons with Nonminimal
Couplings to Gravity
Gravitational Production of Completely Dark Photons with Nonminimal
Couplings to Gravity
Dark photons are a theorized massive spin-1 particle which can be produced via various mechanisms, including cosmological gravitational particle production (GPP) in the early universe. In this work, we extend previous results for GPP of dark photons to include nonminimal couplings to gravity. We find that nonminimal couplings can induce …