Turbulent Supernova Shock Waves and the Sterile Neutrino Signature in Megaton Water Detectors

Abstract

The signatures of sterile neutrinos in the supernova neutrino signal in megaton water Cerenkov detectors are studied. Time dependent modulation of the neutrino signal emerging from the sharp changes in the oscillation probability due to shock waves is shown to be a smoking gun for the existence of sterile neutrinos. These modulations and indeed the entire neutrino oscillation signal is found to be different for the case with just three active neutrinos and the cases where there are additional sterile species mixed with the active neutrinos. The effect of turbulence is taken into account and it is found that the effect of the shock waves, while modifed, remain significant and measurable. Supernova neutrino signals in water detectors can therefore give unambiguous proof for the existence of sterile neutrinos, the sensitivity extending beyond that for terrestial neutrino experiments. In addition the time dependent modulations in the signal due to shock waves can be used to trace the evolution of the shock wave inside the supernova.

28 pages, 11 figures

References in corpus (6)

• NOvA Proposal to Build a 30 Kiloton Off-Axis Detector to Study Neutrino Oscillations in the Fermilab NuMI Beamline
• Damping of supernova neutrino transitions in stochastic shock-wave density profiles
• Topical Review on "Beta-beams"
• Connection between supernova shocks, flavor transformation, and the neutrino signal
• Neutrino mass hierarchy and ${\theta }_{13}$ with a magic baseline beta-beam experiment
• Probing neutrino oscillations from supernovae shock waves via the IceCube detector

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