Viewing Lepton Mixing through the Cabibbo Haze

Abstract

We explore the hypothesis that the Cabibbo angle is an expansion parameter for lepton as well as quark mixing. Cabibbo effects are deviations from zero mixing for the quarks but are deviations from unknown mixings for the leptons, such that lepton mixing is veiled by a Cabibbo haze. We present a systematic classification of parametrizations and catalog the leading order Cabibbo effects. We find that the size of the CHOOZ angle is not always correlated with the observability of CP violation. This phenomenological approach has practical merit both as a method for organizing top-down flavor models and as a guideline for planning future experiments.

References added, minor typos fixed

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Cited by in corpus (42)

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• Physics at a future Neutrino Factory and super-beam facility
• Tri-Bimaximal Neutrino Mixing and the Family Symmetry Z_7 x Z_3
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• Parametrizing the lepton mixing matrix in terms of deviations from tri-bimaximal mixing
• Unified Parametrization for Quark and Lepton Mixing Angles
• Tri-bimaximal-Cabibbo Mixing
• TriMinimal Parametrization of the Neutrino Mixing Matrix
• U_{PMNS} = U_ell^dagger U_nu
• Quark lepton complementarity and renormalization group effects
• θ^PMNS_13 = θ_C / \sqrt2 from GUTs
• The Seesaw Mechanism in Quark-Lepton Complementarity
• Quark-lepton complementarity with quasidegenerate Majorana neutrinos
• Low and High Energy Phenomenology of Quark-Lepton Complementarity Scenarios
• A flavour GUT model with theta_13^PMNS = theta_C / sqrt(2)
• Radiatively broken symmetries of nonhierarchical neutrinos
• Systematic Parameter Space Search of Extended Quark-Lepton Complementarity
• Group space scan of flavor symmetries for nearly tribimaximal lepton mixing
• Stitching an Asymmetric Texture with ${\mathcal{T}}_{13}\times {\mathcal{Z}}_5$ Family Symmetry
• Suppressed FCNC in New Physics with Shared Flavor Symmetry
• ${\theta }_{13}^{}$ and The Flavor Ring
• Neutrino mixing and CP violation from Dirac-Majorana bimaximal mixture and quark-lepton unification
• Correlating lepton mixing angles and mixing matrix with Wolfenstein parameters
• Perturbing exactly tri-bimaximal neutrino mixings with charged lepton mass matrices
• Leptogenesis from the Asymmetric Texture
• Tribimaximal Mixing in the $SU(5)\times {\mathcal{T}}_{13}$ Texture
• Neutrino Oscillation Observables from Mass Matrix Structure
• Entangled maximal mixings in U_PMNS=U_l^dagger U_nu, and a connection to complex mass textures
• Is θ_{13}^{PMNS} correlated with θ_{23}^{PMNS} or not?
• Large Lepton Mixings from Continuous Symmetries
• Low-scale Resonant Leptogenesis in $SU(5)$ GUT with ${\mathcal{T}}_{13}$ Family Symmetry
• Lepton Flavor Violation in Intersecting D-brane Models
• Optimal Parametrization of Deviations from Tribimaximal Form of the Neutrino Mass Matrix
• Fermion masses and neutrino mixing in an U(1)_H flavor symmetry model with hierarchical radiative generation for light charged fermion masses
• Non-maximal θ_{23}, large θ_{13} and tri-bimaximal θ_{12} via quark-lepton complementarity at next-to-leading order
• Asymmetric tri-bi-maximal mixing and residual symmetries
• Deviation from Tri-Bimaximal Neutrino mixing from the Charged Lepton Sector
• Predicting Neutrino Mixing Angles Using Group Presentations
• Relating Lepton Mixing Angles with Lepton Mass Hierarchy
• Neutrino Oscillations in the Three Flavor Paradigm
• New Parametrization of Neutrino Mixing Matrix
• Connecting Tribimaximal and Bitrimaximal Mixings