Going beyond a galactic supernova to Hunt for new physics: the DSNB

by Manibrata Sen (Max-Planck-Institut für Kernphysik)

Thursday 8 Jun 2023, 16:00 → 17:00 Australia/Sydney

The Universe is awash with tens-of-MeV neutrinos of all species coming from all past core-collapse supernovae, also known as the diffuse supernova neutrino background (DSNB). Detecting the DSNB  would open up new avenues in multi-messenger astronomy. In particular, it offers the unique opportunity to probe the properties of the cosmos using neutrinos, as opposed to photons. The  Super-Kamiokande experiment, loaded with gadolinium, is expected to collect dozens of events from the DSNB in the next decade. Future detectors such as Hyper-Kamiokande and Theia will perform even better, collecting hundreds of events after a decade of data-taking.  In this talk, I will discuss how a future detection of the DSNB can be used to inform various research topics in cosmology, astrophysics and particle physics, focusing on a few examples from each field.