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Nearly Degenerate Neutrino Masses and Nearly Decoupled Neutrino Oscillations

Harald Fritzsch·Zhi-zhong Xing
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Abstract

We introduce a simple flavor symmetry breaking scheme, in which charged lepton masses have a strong hierarchy and neutrino masses are almost degenerate. It is possible to obtain a natural suppression of lepton flavor mixing between the 1st and 3rd families as well as the approximate decoupling of atmospheric and solar neutrino oscillations with nearly bi-maximal mixing factors. The similarity and difference between lepton and quark flavor mixing schemes are briefly discussed.

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Harald Fritzsch, Zhi-zhong Xing. 1999-03-26. Nearly Degenerate Neutrino Masses and Nearly Decoupled Neutrino Oscillations. https://arxiv.org/abs/hep-ph/9903499

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