Neutrino Masses and Mixings in a Universal Seesaw Mass Matrix Model
نویسنده
چکیده
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 Mf and neutrino mass matrix Mν are given by Mf ≃ mLM F mR and Mν ≃ mLM F mL (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(mR) = 10 11 GeV andO(MF ) = 10 13 GeV together withO(mL) = 10 2 GeV. In spite of the largesse of O(mR), the observed top quark mass can be consistently understood from the would-be seesaw mass matrix with these mass scales.
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