Prediction for Quark Mixing from Universal Quark and Lepton Mass Matrices with Flavor 2 <-> 3 Symmetry

Abstract

We propose a mass matrix model that gives a unified description of quark and lepton with the same texture form based on a flavor 2 <-> 3 symmetry. The model is in contrast with the conventional picture that the mass matrix forms in the quark sector will take somewhat different structures from those in the lepton sector. By investigating possible types of assignment for masses, we find that our quark mass matrices can lead to small CKM quark mixings which are consistent with experimental values. We also find some phase-parameter-independent relations among CKM quark mixing matrix elements.

arXiv comment25 pages, 5 figures

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• A New Type of Complex Neutrino Mass Texture and mu-tau Symmetry
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• Scaling in the Neutrino Mass Matrix, mu-tau Symmetry and the See-Saw Mechanism
• Determination of Neutrino Mass Texture for Maximal CP Violation
• Two Categories of Approximately mu-tau Symmetric Neutrino Mass Textures
• Correlation between Leptonic CP Violation and mu-tau Symmetry Breaking
• Broken Flavor 2 <-> 3 Symmetry and phenomenological approach for universal quark and lepton mass matrices
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• Large Lepton Mixing and Nonsymmetric Mass Matrices with Flavor 2 <-> 3 Symmetry
• Constraining Alternative Gravity Theories Using The Solar Neutrino Problem
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• Fermion number conservation and two Higgs doublet models without tree level flavour changing neutral currents
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