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6 papers · 2 filters
Democratic mass matrices induced by strong gauge dynamics and large mixing angles for leptons
Tatsuo Kobayashi, Hiroaki Shirano, Haruhiko Terao
We consider dynamical realization of the democratic type Yukawa coupling matrices as the Pendelton-Ross infrared fixed points.?Such fixed points of the Yukawa couplings become poss…
Large Mass Scale by Strong Gauge Dynamics with Infrared Fixed Point
Tatsuo Kobayashi, Hiroaki Nakano, Haruhiko Terao +1
We consider a mechanism for realizing the desired decoupling of strongly-coupled sector which is supposed to generate hierarchical structure of the Yukawa couplings. In our mechani…
Dihedral Families of Quarks, Leptons and Higgs Bosons
K. S. Babu, Jisuke Kubo
We consider finite groups of small order for family symmetry. It is found that the binary dihedral group Q_6, along with the assumption that the Higgs sector is of type II, predict…
Suppressed supersymmetry breaking terms in the Higgs sector
Tatsuo Kobayashi, Haruhiko Terao
We study the little hierarchy between mass parameters in the Higgs sector and other SUSY breaking masses. This type of spectrum can relieve the fine-tuning problem in the MSSM Higg…
Double Suppression of FCNCs in Supersymmetric Models
Ki-Young Choi, Yuji Kajiyama, Hyun Min Lee +1
A mechanism for double suppression of flavor-changing neutral currents (FCNCs) and CP violating phases in supersymmetric models is suggested. At M_{SUSY} they are suppressed due to…
Higgs Potential in Minimal S_3 Invariant Extension of the Standard Model
Jisuke Kubo, Hiroshi Okada, Fumiaki Sakamaki
Minimal invariant Higgs potential with real soft breaking masses is investigated. It is required that without having a problem with triviality, all physical Higgs b…