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Naturally degenerate right-handed neutrinos
2005
Physical Review D
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In the context of supersymmetric theories, a weakly broken gauged SO(3) flavour symmetry is used to produce two highly degenerate right handed (RH) neutrinos. It is then shown that this SO(3) flavour symmetry is compatible with all fermion masses and mixings if it is supplemented with a further SU(3) flavour symmetry. A specific Susy breaking model is used to generate the light neutrino masses as well as a natural model of TeV scale resonant leptogenesis.
doi:10.1103/physrevd.71.013004
fatcat:7vusfhxmpvawpjxugp5j4tlipy