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arXiv · hep-ph/9909415

Large CP Violation, Large Mixings of Neutrinos and Democratic-type Neutrino Mass Matrix

Kiko Fukuura·Takahiro Miura·Eiichi Takasugi·Masaki Yoshimura
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Abstract

We propose a democratic-type neutrino mass matrix based on $Z_3$ symmetry. This mass matrix predicts the CP violation phase, $δ=π/2$, and the mixing angle between the mass eigenstates $ν_2$ and $ν_3$, $\sin^2 θ_{23}= \cos^2 θ_{23}=1/2$ which is essential for the large atmospheric neutrino mixing, between $ν_μ$ and $ν_τ$. In this model, the large CP violation effect may be expected.

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Kiko Fukuura, Takahiro Miura, Eiichi Takasugi, Masaki Yoshimura. 1999-11-15. Large CP Violation, Large Mixings of Neutrinos and Democratic-type Neutrino Mass Matrix. https://doi.org/10.1103/physrevd.61.073002

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