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Neutrino Mass Matrix Related to Up-Quark Masses and Nearly Tribimaximal Mixing -- Based on a Yukawaon model --
Yoshio Koide
Based on a new approach (the so-called Yukawaon model) to the mass spectra and mixings, a neutrino mass matrix which is described in terms of the up-quark masses and CKM matrix par…
Charged Lepton Mass Relations in a Supersymmetric Yukawaon Model
Yoshio Koide
According to an idea that effective Yukawa coupling constants Y_f^{eff} are given vacuum expectation values < Y_f> of fields ("Yukawaons") Y_f as Y_f^{eff}=y_f < Y_f>/Λ, a possible…
Maximal CP Violation Hypothesis and a Lepton Mixing Matrix
Yoshio Koide, Hiroyuki Nishiura
Maximal CP violation hypothesis is applied to a simple lepton mixing matrix form U=V_{CKM}^\dagger U_{TB}, which has recently been speculated under an ansatz that U becomes an exac…
Phenomenological Meaning of a Neutrino Mass Matrix Related to Up-Quark Masses
Yoshio Koide
Recently, a curious neutrino mass matrix has been proposed: it is related to up-quark masses, and it can excellently give a nearly tribimaxial mixing. It is pointed out that, in or…
Testable Deviation from Exact Tribimaximal Mixing
Yoshio Koide, Hiroyuki Nishiura
A simple relation U_{MNS}=V_{CKM}^\dagger U_{TB} between the lepton and quark mixing matrices (U_{MNS} and V_{CKM}) is speculated under an ansatz that U_{MNS} becomes an exact trib…
Neutrino Mass Hierarchies in a Mass Matrix Form Versus its Inverse Form
Yoshio Koide
A neutrino mass matrix model M_νwith M_ν^T =M_νand a model with its inverse matrix form \widetilde{M}_ν= m_0^2 (M_ν^*)^{-1} can be diagonalized by the same mixing matrix U_ν. It is…