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arxiv: hep-ph/0007076 · v1 · submitted 2000-07-08 · ✦ hep-ph

Analysis of the Superkamiokande atmospheric neutrino data in the framework of four neutrino mixings

classification ✦ hep-ph
keywords neutrinoatmosphericdatafourframeworksuperkamiokandeallowedanalysis
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Superkamiokande atmospheric neutrino data for 990 days are analyzed in the framework of four neutrinos without imposing constraints of Big Bang Nucleosynthesis. It is shown that the wide range of the oscillation parameters is allowed at 90% confidence level ($0.1\lsim |U_{s1}|^2+|U_{s2}|^2\le 1$).

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