Up Quark Masses from Down Quark Masses
arXiv:hep-ph/0606097 · doi:10.1016/j.physletb.2006.09.066
Abstract
The quark and charged lepton masses and the angles and phase of the CKM mixing matrix are nicely reproduced in a model which assumes SU(3)xSU(3) flavour symmetry broken by the v.e.v.'s of fields in its bi-fundamental representation. The relations among the quark mass eigenvalues, m_u/m_c \approx m_c/m_t \approx m^2_d/m^2_s \approx m^2_s/m^2_b \approx Λ^2_{GUT}/M^2_{Pl}, follow from the broken flavour symmetry. Large tan(beta) is required which also provides the best fits to data for the obtained textures. Lepton-quark grandunification with a field that breaks both SU(5) and the flavour group correctly extends the predictions to the charged lepton masses. The seesaw extension of the model to the neutrino sector predicts a Majorana mass matrix quadratically hierarchical as compared to the neutrino Dirac mass matrix, naturally yielding large mixings and low mass hierarchy for neutrinos.
11 pages, 1 figure. Published version: model improved, references added
References in corpus (22)
- CP Violation and the CKM Matrix: Assessing the Impact of the Asymmetric B Factories
- Stitching the Yukawa Quilt
- Predictions From A U(2) Flavour Symmetry In Supersymmetric Theories
- Horizontal Symmetries for the Supersymmetric Flavor Problem
- Fermion Masses and Mixing Angles from SU(3) Family Symmetry
- Fermion Masses and Mixing Angles from SU(3) Family Symmetry and Unification
- Quark Lepton Mass Hierarchies and the Baryon Asymmetry
- Unified Theories with U(2) Flavor Symmetry
- Flavor Symmetries and the Description of Flavor Mixing
- Large neutrino mixing angles in unified theories
- A Simple Grand Unification View of Neutrino Mixing and Fermion Mass Matrices
- On the generality of certain predictions for quark mixing
- Precision test of a Fermion mass texture
- From Minimal to Realistic Supersymmetric SU(5) Grand Unification
- A Maximal Atmospheric Mixing from a Maximal CP Violating Phase
- Predictive Grand Unified Textures for Quark and Neutrino Masses and Mixings
- Grand unified textures for neutrino and quark mixings
- Neutrino mixings from a U(2) flavour symmetry
- Update on Fermion Mass Models with an Anomalous Horizontal U(1) Symmetry
- Quark and Lepton Masses in 5D SO(10)
- Supersymmetric SO(10) for fermion masses and mixings: rank-1 structures of flavour
- alpha ~ pi/2 from supersymmetric spontaneous flavor breaking
Cited by in corpus (7)
- Flavour physics of leptons and dipole moments
- Right unitarity triangles and tri-bimaximal mixing from discrete symmetries and unification
- Solving the Strong CP Problem with Discrete Symmetries and the Right Unitarity Triangle
- Quark mixing sum rules and the right unitarity triangle
- The Matrix of Unitarity Triangle Angles for Quarks
- SO(10) unified models and soft leptogenesis
- Exotic particles below the TeV from low scale flavour theories