Unification and Fermion Mass Structure
arXiv:0704.1248 · doi:10.1016/j.physletb.2008.05.014
Abstract
Grand Unified Theories predict relationships between the GUT-scale quark and lepton masses. Using new data in the context of the MSSM, we update the values and uncertainties of the masses and mixing angles for the three generations at the GUT scale. We also update fits to hierarchical patterns in the GUT-scale Yukawa matrices. The new data shows not all the classic GUT-scale mass relationships remain in quantitative agreement at small to moderate tan beta. However, at large tan beta, these discrepancies can be eliminated by finite, tan beta-enhanced, radiative, threshold corrections if the gluino mass has the opposite sign to the wino mass.
10 pages, added references and comments on GUT thresholds
References in corpus (1)
Cited by in corpus (8)
- Updated Values of Running Quark and Lepton Masses
- Quark and lepton masses at the GUT scale including SUSY threshold corrections
- Fermion Mass Hierarchies and Flavor Mixing from Symmetry
- Proton Hexality from an Anomalous Flavor U(1) and Neutrino Masses - Linking to the String Scale
- Heterotic and M-theory Compactifications for String Phenomenology
- Family symmetries and the origin of fermion masses and mixings
- U(3)-Flavor Nonet Scalar as an Origin of the Flavor Mass Spectra
- Two-Zero Symmetric Neutrino Mass Matrices in Minimal Supersymmetric SO(10)