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The atmospheric flux νμ/νe anomaly as manifestation of proton decay p→e+νν

1992; Elsevier BV; Volume: 291; Issue: 1-2 Linguagem: Inglês

10.1016/0370-2693(92)90144-s

1873-2445

W. A. Mann, T. Kafka, W. Leeson,

Particle physics theoretical and experimental studies

In a scenario in which absolute fluxes of low energy atmospheric neutrinos are at or below expectations of published calculations, the observed small νμ/νe ratio is emenable to non-oscillation interpretation. The rate of single-ring, e-like events of 200 to 500 MeV/c in Kamiokande data would appear to be enhanced. The shower momentum spectrum of the event excess is compatible with proton decay p→e+νν with τ/B ∼ 4 × 1031 yr.