Universal seesaw mass matrix model with anS3symmetry
نویسندگان
چکیده
منابع مشابه
Universal Seesaw Mass Matrix Model
Stimulated by the recent development of the “universal seesaw mass matrix model”, an application of the model to the neutrino mass matrix is investigated: For the charged lepton and down-quark sectors, the model explains the smallness of their masses mf by the conventional seesaw mechanism Mf ≃ mLM F mR (MF is a mass matrix of hypothetical heavy fermions F ). On the other hand, the observed fac...
متن کاملUniversal Seesaw Mass Matrix Model with an S 3 Symmetry
Stimulated by the phenomenological success of the universal seesaw mass matrix model, where the mass terms for quarks and leptons fi (i = 1, 2, 3) and hypothetical super-heavy fermions Fi are given by fLmLFR +FLmRfR + FLMFFR + h.c. and the form of MF is democratic on the bases on which mL and mR are diagonal, the following model is discussed: The mass terms MF are invariant under the permutatio...
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Stimulated by a recent development of the universal seesaw mass matrix model, the evolutions of the gauge and Yukawa coupling constants are investigated under the gauge symmetries SU(3)c×SU(2)L×SU(2)R×U(1)Y . Especially, an investigation is made as to whether this evolution can constrain the necessary intermediate scales in these types of models and its viability. 12.15.Ff, 11.10.Hi, 12.60.-i T...
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Stimulated by a universal seesaw mass matrix model which can successfully give quark masses and CKM matrix elements in terms of charged lepton masses, the evolution of the seesaw mass matrices is investigated. Especially, an energy scale at which the parameters characterizing between quark and lepton mass matrices are unified is evaluated. PACS: 12.15.Ff, 11.10.Hi, 12.60.-i
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A seesaw mass matrix model is reviewed as a unification model of quark and lepton mass matrices. The model can understand why topquark mass mt is so singularly enhanced compared with other quark masses, especially, why mt ≫ mb in contrast to mu ∼ md, and why only top-quark mass is of the order of the electroweak scale ΛW , i.e., mt ∼ O(ΛW ). The model predicts the fourth up-quark t′ with a mass...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1999
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.60.077301