A Simple Grand Unification View of Neutrino Mixing and Fermion Mass Matrices
نویسندگان
چکیده
Assuming three light neutrinos and the seesaw mechanism we present a semiquantitative model of fermion masses based on (SUSY) SU(5) and abelian horizontal charges. A good description of the observed pattern of quark and lepton masses is obtained. For neutrinos we naturally obtain widely split masses and large atmospheric neutrino mixing as a consequence of SU(5)-related asymmetric mass matrices for d quarks and charged leptons.
منابع مشابه
Grand unified textures for neutrino and quark mixings
The atmospheric neutrino data imply large mixing between the νμ and ντ states, θ23 = (45 ± 13)◦, while the MSW solution to the solar neutrino problem needs very small mixing angle θ12 = (1− 4)◦. In the quark sector the situation is rather opposite – the 23 mixing is tiny, θ23 ≃ 2◦, versus reasonable 12 mixing, θ12 ≃ 13◦. We show that such complementary patterns of the quark and leptonic mixings...
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