Democratic Mass Matrices Induced by Strong Gauge Dynamics and Large Mixing Angles for Leptons(Particles and Fields)
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概要
- 論文の詳細を見る
We consider the dynamical realization of the democratic type of Yukawa coupling matrices as the Pendelton-Ross infrared fixed points. Such fixed points of the Yukawa couplings become possible through the introduction of many Higgs fields, which are made superheavy, but one massless mode. Explicitly, we consider a strongly coupled supersymmetric GUT based on SU(5)×SU(5), in which rapid convergence to the infrared fixed point generates sufficiently large mass hierarchy for quarks and leptons. In particular, it is found that the remarkable difference between mixing angles in the quark and lepton sectors can be explained as a simple dynamical consequence. We also discuss a possible scenario leading to a realistic mass spectra and mixing angles for quarks and leptons. In this scheme, the Yukawa couplings not only for top but also for bottom appear close to their quasi-fixed points at low energy and, therefore, tan β should be large.
- 理論物理学刊行会の論文
- 2005-05-25
著者
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Terao Haruhiko
Institute For Theoretical Physics Kanazawa University
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Kobayashi Tatsuo
Departmant Of Physics Kyoto University
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SHIRANO Hiroaki
Institute for Theoretical Physics, Kanazawa University
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Shirano Hiroaki
Institute For Theoretical Physics Kanazawa University
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KOBAYASHI Tatsuo
Departmant of Physics, Kyoto University
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