Physics (Internal)

"Supernova Bounds on Dark Sectors"

This event is part of the HET Seminar Series.

Supernova 1987A created an environment of extremely high temperatures and nucleon densities. The rough agreement between predictions of core collapse models and observations of a "neutrino burst" provide an opportunity to set bounds on a wide range of theories of new physics. I’ll new bounds on dark sector models, incorporating finite-temperature effects on the production and trapping of a dark photon, nuclear effects for the coupling to axions, and a more realistic model of the high-mixing parameter space than in previous work. This has dramatic effects for the landscape of such models.