221 citations
- Kanagawa Dental UniversityJP8 papers
- The University of TokyoJP7 papers
- Nihon UniversityJP6 papers
- Tohoku UniversityJP6 papers
- Indian Institute of Technology KanpurIN4 papers
- Osaka Metropolitan UniversityJP3 papers
- Tokyo Institute of TechnologyJP3 papers
- Chiba UniversityJP2 papers
- The University of OsakaJP2 papers
- Tokyo Metropolitan UniversityJP2 papers
- University of Southern CaliforniaUS2 papers
- Advanced Science Research CenterJP1 paper
9 papers · 1 filter
Flavor physics in SU(5) GUT with scalar fields in the 45 representation
Toru Goto, Satoshi Mishima, Tetsuo Shindou
We study a realistic SU(5) grand unified model, where a 45 representation of scalar fields is added to the Georgi-Glashow model in order to realize the gauge coupling unification a…
Naturalness Bounds on Dipole Moments from New Physics
Keiichi Akama, Takashi Hattori, Kazuo Katsuura
Assuming naturalness that the quantum corrections to the mass should not exceed the order of the observed mass, we derive and apply model-independent bounds on the anomalous magnet…
A Dynamical Origin of the Mass Hierarchy among Neutrinos, Charged Leptons, and Quarks
Keiichi Akama, Kazuo Katsuura
We propose a dynamical mass-generation scenario which naturally realizes the mass hierarchy among the neutrinos, charged leptons and quarks, where the mass is dominated by the self…
Complementarity between Gauge-Boson Compositeness and Asymptotic Freedom
Keiichi Akama, Takashi Hattori
We derive and solve the compositeness condition for the SU(N_c) gauge boson at the next-to-leading order in 1/N_f (N_f is the number of flavors) and the leading order in ln(Λ^2) (Λ…
Compositeness Condition
Keiichi Akama
By solving the compositeness condition, under which the Yukawa-type model coincides the NJL type model, we obtain the expressions for the effective coupling constants in terms of t…
Has the Substructure of Quarks and Leptons Been Found also by the H1 and ZEUS Detectors at HERA?
Keiichi Akama, Kazuo Katsuura, Hidezumi Terazawa
The significant excess of events recently found by the H1 and ZEUS Collaborations at HERA in the deep-inelastic e^+ p scattering for high momentum-transfers squared Q^2>15000 GeV^2…