Detecting Fast Time Variations in the Supernova Neutrino Flux with Hyper-Kamiokande

Understand

For detection of neutrinos from galactic supernovae, the planned Hyper-Kamiokande detector will be the first detector that delivers both a high event rate (about one third of the IceCube rate) and event-by-event energy information.

• In this thesis, we use a three-dimensional computer simulation by the Garching group to find out whether this additional information can be used to improve the detection prospects of fast time variations in the neutrino flux.
• We find that the amplitude of SASI oscillations of the neutrino number flux is energy-dependent.
• However, in this simulation, the larger amplitude in some energy bins is not sufficient to counteract the increased noise caused by the lower event rate.