The "complementary" Ansatz, Tr(M_\nu)=0, where M_\nu is the prediagonal neutrino mass matrix, seems a plausible approximation for capturing in a self-contained way some of the content of Grand Unification. We study its consequences in the form of relations between the neutrino masses and CP violation phases.
Schechter, Joseph; Nasri, Salah; and Moussa, Sherif, "Study of Leptonic CP Violation" (2004). Physics. 275.
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