Common Hierarchical Lepton Mass Textures for Atmospheric and Solar Neutrino Oscillations

We propose and study a common hierarchical mass texture for both charged lepton and neutrino sectors. The texture gives rise to a large $ν_μ\leftrightarrowν_τ$ mixing. Also it leads to the small angle MSW effect solution for solar neutrino data. It naturally gives a small $ν_e\leftrightarrow ν_τ$ oscillation relevant to the CHOOZ result in certain mass limits.

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