Neutrino Masses and Mixings in a Universal Seesaw Mass Matrix Model

Details Neutrino Masses and Mixings in a Universal Seesaw Mass Matrix Model Neutrino Masses and Mixings in a Universal Seesaw Mass Matrix Model

1997-07-29

arxiv.org/abs/hep-ph/9707505v1

Phys.Rev. D57 (1998) 5836-5843

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages (Latex file)

Scientific paper

10.1103/PhysRevD.57.5836

Neutrino masses and mixings are investigated on the basis of a universal seesaw mass matrix model, in which quark (except for top) and charged lepton mass matrices M_f and neutrino mass matrix M_\nu are given by M_f \simeq m_L M_F^{-1} m_R and M_\nu \simeq m_L M_F^{-1} m_L^T (F=N), respectively. For a simple model which can successfully describe quark masses and mixings, we find that the observed neutrino data (except for the solar neutrino data) are favor to the intermediate mass scales O(m_R) = 10^{11} GeV and O(M_F)= 10^{13} GeV together with O(m_L)= 10^2 GeV. In spite of the largesse of O(m_R), the observed top quark mass can be consistently understood from the would-be seesaw mass matrix with these mass scales.

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