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Quark–lepton unification and eight-fold ambiguity in the left–right symmetric seesaw mechanism

2006
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Nuclear Physics B
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In many extensions of the Standard Model, including a broad class of left-right symmetric and Grand Unified theories, the light neutrino mass matrix is given by the left-right symmetric seesaw formula M_ν = f v_L - v^2/v_R Y_ν f^-1 Y_ν, in which the right-handed neutrino mass matrix and the SU(2)_L triplet couplings are proportional to the same matrix f. We propose a systematic procedure for reconstructing the 2^n solutions (in the n-family case) for the matrix f as a function of the Dirac

doi:10.1016/j.nuclphysb.2006.07.028
fatcat:46nyq4a6gnbpxgi4yhqsegsham