Disentangling sub-GeV dark matter from the diffuse supernova neutrino background using Hyper-Kamiokande

Disentangling sub-GeV dark matter from the diffuse supernova neutrino background using Hyper-Kamiokande

Blog Article

The upcoming Hyper-Kamiokande (HyperK) experiment is expected to detect the Diffuse Supernova Neutrino Background (DSNB).This requires to ponder all possible sources of background.Sub-GeV dark matter (DM) which annihilates into neutrinos is a potential background that has not been considered so far.We simulate DSNB and DM Label Console Window signals, as well as backgrounds in the HyperK detector.We find that DM-induced neutrinos could indeed alter the extraction of the correct values of the parameters of interest for Mountaineering - Accessoires - Peaux DSNB physics.

Since the DSNB is an isotropic signal, and DM originates primarily from the Galactic centre, we show that this effect could be alleviated with an on-off analysis.