We propose a simple Ansatz for the three generation neutrino mass matrix M_\nu which is motivated from an SO(10) grand unified theory. The Ansatz can be combined with information from neutrino oscillation experiments and bounds on neutrinoless double beta decay to determine the neutrino masses themselves and to reconstruct, with some assumptions, the matrix M_\nu.
Schechter, Joseph; Black, Deirdre; Fariborz, Amir H.; and Nasri, Salah, "Complementary Ansatz for the Neutrino Mass Matrix" (2001). Physics - All Scholarship. 289.
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