Revisiting Supernova 1987A constraints on dark photons
Revisiting Supernova 1987A constraints on dark photons
We revisit constraints on dark photons with masses below ∼ 100 MeV from the observations of Supernova 1987A. If dark photons are produced in sufficient quantity, they reduce the amount of energy emitted in the form of neutrinos, in conflict with observations. For the first time, we include the effects …