Signature of supernova neutrino flavor mixing in water [hacek C]erenkov detectors
- Department of Physics, 0319, University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093-0319 (United States)
We study supernova neutrino burst signals in large water [hacek C]erenkov detectors, examining the effects of mixing between [nu][sub [ital e]] and either [nu][sub [mu]] or [nu][sub [tau]], and taking account of charged current [nu][sub [ital e]] capture on oxygen in the detector. We show that the characteristic count rates and angular distributions from supernova neutrino-induced events can depend sensitively on the degree of neutrino flavor mixing. This sensitivity results from the different average energies expected in supernova models for [nu][sub [ital e]] on the one hand and [nu][sub [mu]] and [nu][sub [tau]] on the other, the steep increase in the [sup 16]O([nu][sub [ital e]],[ital e][sup [minus]])[sup 16]F cross section with neutrino energy, and the backward-peaked nature of the exit channel electron in this reaction. Neutrino flavor-mixing effects would be identifiable in the super Kamiokande detector for the neutrino burst of a galactic supernova.
- OSTI ID:
- 5196778
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Vol. 49:4; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
NEUTRINOS
CHERENKOV COUNTERS
MIXING
SUPERNOVAE
ANGULAR DISTRIBUTION
CAPTURE
CHARGED-CURRENT INTERACTIONS
FLAVOR
NEUTRINO REACTIONS
OXYGEN 16 TARGET
RADIATION DETECTORS
DISTRIBUTION
ELEMENTARY PARTICLES
ERUPTIVE VARIABLE STARS
FERMIONS
INTERACTIONS
LEPTON REACTIONS
LEPTONS
MASSLESS PARTICLES
MEASURING INSTRUMENTS
NUCLEAR REACTIONS
ORGANOLEPTIC PROPERTIES
PARTICLE INTERACTIONS
STARS
TARGETS
VARIABLE STARS
662430* - Properties of Leptons- (1992-)