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arXiv:1610.00559 [astro-ph.IM]AbstractReferencesReviewsResources

Simulating fast time variations in the supernova neutrino flux in Hyper-Kamiokande

Jost Migenda, for the Hyper-Kamiokande Collaboration

Published 2016-10-03Version 1

Hyper-Kamiokande is a proposed next-generation water Cherenkov detector. If a galactic supernova happens, it will deliver a high event rate ($\mathcal{O}(10^5)$ neutrino events in total) as well as event-by-event energy information. Recent supernova simulations exhibit the Standing Accretion Shock Instability (SASI) which causes oscillations in the number flux and mean energy of neutrinos. The amplitude of these oscillations is energy-dependent, so the energy information available in Hyper-Kamiokande could be used to improve the detection prospects of these SASI oscillations. To determine whether this can be achieved in the presence of detector effects like backgrounds and finite energy uncertainty, we have started work on a detailed simulation of Hyper-Kamiokande's response to a supernova neutrino burst.

Comments: 3 pages, 2 figures. Presented as a poster at Neutrino 2016, proceedings to be published in Journal of Physics: Conference Series
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