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Radiative seesaw and degenerate neutrinos

Borut Bajc·Goran Senjanovic
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Abstract

The radiative see-saw mechanism of Witten generates the right-handed neutrino masses in SO(10) with the spinorial 16_H Higgs field. We study here analytically the 2nd and 3rd generations for the minimal Yukawa structure containing 10_H and 120_H Higgs representations. In the approximation of small 2nd generation masses and gauge loop domination we find the following results : (1) b-tau unification, (2) natural coexistence between large theta_l and small theta_q, (3) degenerate neutrinos.

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Borut Bajc, Goran Senjanovic. 2005-07-14. Radiative seesaw and degenerate neutrinos. https://doi.org/10.1103/physrevlett.95.261804

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