Symmetric Mass Matrix with Two Zeros in SUSY SO(10) GUT, Lepton Flavor Violations and Leptogenesis(Particles and Fields)

概要

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We study the symmetric 2-zero texture of the neutrino mass matrix, which is obtained from the symmetric Dirac neutrino mass matrix with 2 zeros and the right-handed Majorana neutrino mass matrix with general form via the seesaw mechanism, for the SUSY SO (10) GUT model including the Pati-Salam symmetry. We show that the only texture in our model, having a degenerate mass spectrum for the 1st and 2nd generation of the right-handed Majorana neutrino, can simultaneously account for the current neutrino experimental data, lepton flavor violating processes and the baryon asymmetry of the universe. Within such a framework, the predicted values of the light and heavy Majorana neutrino masses, together with |U_<e3>|, J_<CP> and |<M_<ee>>|, are almost uniquely determined.
理論物理学刊行会の論文
2004-09-25