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

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

1999-09-17

arxiv.org/abs/hep-ph/9909415v3

Phys.Rev. D61 (2000) 073002

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 22pages, corrected some terminologies, reference added

Scientific paper

10.1103/PhysRevD.61.073002

We propose a democratic-type neutrino mass matrix based on $Z_3$ symmetry. This mass matrix predicts the CP violation phase, $\delta=\pi/2$, and the mixing angle between the mass eigenstates $\nu_2$ and $\nu_3$, $\sin^2 \theta_{23}= \cos^2 \theta_{23}=1/2$ which is essential for the large atmospheric neutrino mixing, between $\nu_\mu$ and $\nu_\tau$. In this model, the large CP violation effect may be expected.

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