2006/05/11 by Tatsuo Kobayashi, Yuji Omura, Haruhiko Terao
Physics and Astronomy · #Neutrino Physics Research #Particle physics theoretical and experimental studies #Physics of Superconductivity and Magnetism #hep-ph
paper · pdf · doi:10.1103/physrevd.74.053005
published as Phys.Rev. D74 (2006) 053005 · 25 pages, latex
arxiv created 2006/05/11 · openalex publication_date 2006/09/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We study realization of the democratic form of Yukawa matrices by infrared fixed points. We investigate renormalization-group flows of Yukawa couplings in models with a single Yukawa matrix for three families, and up and down-sector Yukawa matrices. It is found that each model has its certain pattern of renormalization-group flows of Yukawa matrices. We apply them to the charged lepton sector and quark sector, and examine in which situation our class of models can lead to realistic results for the mass ratios and mixing angles between the second and third families. We also study corresponding A-terms. The A-terms approach toward the universal form with no physical CP-violating phase. Thus, constraints due to various neutral flavor changing processes except for \ensuremathμ\ensuremath→e\ensuremathγ are found to be satisfied by this dynamics. In order to suppress the electric dipole moments as well as \ensuremathμ\ensuremath→e\ensuremathγ sufficiently, more alignment of the A-terms with some reason is required.