Predictions from the Fritzsch-Type Lepton Mass Matrices

Abstract

We revisit the Fritzsch-type lepton mass matrix models confronted with new experiments for neutrino mixings. It is shown that the model is viable and leads to a rather narrow range of free parameters. Using empirical mixing information between ${\nu }_e$ and ${\nu }_{\mu }$, and between ${\nu }_{\mu }$ and ${\nu }_{\tau }$, it is predicted that the mixing angle between $n{u}_e$ and ${\nu }_{\tau }$ is in the range $0.04<|U_{13}|<0.20$, consistent with the CHOOZ experiment and the lightest neutrino mass is $0.0004<m_1<0.0030$ eV. The range of the effective mass measured in double beta decay is $0.002<<m_{ee}><0.007$ eV.

Latex file with 13 pages, 6 eps files

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