Determining supernova unknowns with the diffuse supernova neutrino background

by Ms Anna Suliga (Niels Bohr Institute)

Thursday 28 Mar 2019, 11:00 → 12:00 Europe/Berlin

313

The diffuse supernova neutrino background (DSNB) is the flux of neutrinos emitted from all core-collapse supernovae exploding in our Universe. In this talk, I will review how the DSNB is estimated by adopting inputs from a set of hydrodynamical simulations of core-collapse supernovae and up-to-date modeling of the core-collapse supernova population. Then I will show how we can use the expected event rates in Hyper-Kamiokande (HK) enriched with gadolinium, DUNE, and JUNO to perform the likelihood analysis. This will allow us to investigate the DSNB power to constrain unknowns of the supernova population, such as the fraction of black hole-forming progenitors and the supernovae rate.