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A phenomenological outlook on three-flavor atmospheric neutrino oscillations

G. L. Fogli, E. Lisi, A. Marrone, G. Scioscia

hep-pharXiv:hep-ph/9904465

Abstract

The recent observations of atmospheric nu events from the Super-Kamiokande experiment are compatible with three-flavor neutrino oscillations, occurring dominantly in the numu<--->nutau channel and subdominantly in the numu<--->nue channel. We present an updated analysis of the three-flavor mass-mixing parameters consistent with the present phenomenology, including the latest 45 kTy data sample from Super-Kamiokande. A comparison with our previous results, based on 33 kTy data, shows that the oscillation evidence is strengthened, and that the neutrino mass-mixing parameters are constrained in smaller ranges.

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