Hierarchical masses and universal mixing in quark-lepton mass matrices

Abstract

The universality hypothesis for quark and lepton mixing matrices (CKM and MNS) is further developed. This hypothesis explains why the CKM is almost diagonal whereas the MNS is almost maximally mixed. If this hypothesis is true, the Dirac CP violating phase of the MNS mixing matrix is bounded around $\pi$ or 0. Quark-lepton mass matrices which realizes this hypothesis are constructed, showing simple power law relations among mass matrices for up-type, down-type quarks and neutrinos.

7 pages, 2 figures

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• Observation of electron-antineutrino disappearance at Daya Bay
• Global analysis of neutrino masses, mixings and phases: entering the era of leptonic CP violation searches
• Unification and Fermion Mass Structure
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Cited by in corpus (1)

• $T_7$ flavor symmetry scheme for understanding neutrino mass and mixing in 3-3-1 model with neutral leptons