Dark Photon Dark Matter

Explore the theoretical foundations and phenomenological implications of dark photon dark matter in this comprehensive physics lecture delivered at the Galileo Galilei Institute. Delve into the properties of dark photons as viable dark matter candidates, examining their production mechanisms in the early universe and their potential observational signatures. Learn about the theoretical framework that describes how dark photons could constitute a significant portion of the universe's dark matter, including discussions of their mass generation, coupling to ordinary matter, and cosmological evolution. Investigate current experimental approaches and future detection strategies for dark photon dark matter, including direct detection methods, astrophysical probes, and laboratory-based searches. Understand the role of dark photons in addressing fundamental questions about the nature of dark matter while exploring connections to particle physics beyond the Standard Model and cosmological structure formation.