Abstract

We study the physics potential of a reference next-generation water-Cherenkov detector (0.4 Mton of fiducial mass) in providing information on supernova neut rino flavor transitions with unprecedented statistics. We emphasize the importance of studying the time spectra of events, which encode combined information on neutrino oscillation parameters and on supernova forward (and possibly reverse) shock waves. In particular, we show that an appropriate ratio of low-to-high energy events can faithfully monitor the time evolution of the neutrino crossing probability along the shock-wave profile, and can provide precious informatio n about currently unknown neutrino mass-mixing parameters.

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