Singular Kahler Potential and Heavy Top Quark in A Democratic Mass Matrix Model

Abstract

It is pointed out that heavy top quark mass can be attributed to a singular normalization of its kinetic term, in which rescaling into canonical one yields large top Yukawa coupling. We pursue this novel possibility in a democratic mass matrix model where only the normalization of the third generation can be different from that of the other two generations. With diagonal breaking of democratic S_3 symmetry, we show that the singular normalization for the top quark is essential to reproduce observed quark masses and mixing angles. We also briefly argue other applications of this mechanism.

10 pages, 1 figure

References in corpus (3)

• Leptogenesis with Almost Degenerate Majorana Neutrinos
• Democratic (S)fermions and Lepton Flavor Violation
• Geometric Origin of Large Lepton Mixing in a Higher Dimensional Spacetime

Cited by in corpus (9)

• Probing the doubly-charged Higgs with Muonium to Antimuonium Conversion Experiment
• Yukawa interactions, flavor symmetry, and non-canonical Kähler potential
• Diagonal reflection symmetries, four-zero texture, and trimaximal mixing with predicted ${\theta }_{13}$ in an $A_4$ symmeric model
• Analysis of right-handed Majorana neutrino mass in an $SU(4)\times SU(2{)}_L\times SU(2{)}_R$ Pati--Salam model with democratic texture
• Diagonal reflection symmetries and universal four-zero texture
• Flavor structure from `canonical' Yukawa interactions and `emergent' kinetic terms
• Chasing after flavor symmetries of quarks from bottom up
• A bottom-up approach to fermion mass hierarchy: a case with vector-like fermions
• On a mechanism realizing quark mass hierarchy