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arXiv · hep-ph/9809531

Atmospheric neutrino observations and flavor changing interactions

M. C. Gonzalez-Garcia·M. M. Guzzo·P. I. Krastev·H. Nunokawa·O. L. G. Peres·V. Pleitez·J. W. F. Valle·R. Zukanovich Funchal
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Abstract

Flavor changing (FC) neutrino-matter interactions can account for the zenith-angle dependent deficit of atmospheric neutrinos observed in the SuperKamiokande experiment, without directly invoking neither neutrino mass, nor mixing. We find that FC $ν_μ$-matter interactions provide a good fit to the observed zenith angle distributions, comparable in quality to the neutrino oscillation hypothesis. The required FC interactions arise naturally in many attractive extensions of the Standard Model.

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M. C. Gonzalez-Garcia, M. M. Guzzo, P. I. Krastev, H. Nunokawa, O. L. G. Peres, V. Pleitez, J. W. F. Valle, R. Zukanovich Funchal. 1999-03-24. Atmospheric neutrino observations and flavor changing interactions. https://doi.org/10.1103/physrevlett.82.3202

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