Singular Kähler potential and heavy top quark in a democratic mass matrix model

Mitsuru Kakizaki; Masahiro Yamaguchi

doi:10.1016/j.physletb.2003.08.040

Singular Kähler potential and heavy top quark in a democratic mass matrix model

Mitsuru Kakizaki, Masahiro Yamaguchi

SCI - Physics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

It is pointed out that heavy top quark mass can be attributed to a singular normalization of its kinetic term, in which rescaling into canonical one yields large top Yukawa coupling. We pursue this novel possibility in a democratic mass matrix model where only the normalization of the third generation can be different from that of the other two generations. With diagonal breaking of democratic S3 symmetry, we show that the singular normalization for the top quark is essential to reproduce observed quark masses and mixing angles. We also briefly argue other applications of this mechanism.

Original language	English
Pages (from-to)	123-130
Number of pages	8
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	573
Issue number	1-4
DOIs	https://doi.org/10.1016/j.physletb.2003.08.040
Publication status	Published - 2003 Oct 30

ASJC Scopus subject areas

Nuclear and High Energy Physics

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abstract = "It is pointed out that heavy top quark mass can be attributed to a singular normalization of its kinetic term, in which rescaling into canonical one yields large top Yukawa coupling. We pursue this novel possibility in a democratic mass matrix model where only the normalization of the third generation can be different from that of the other two generations. With diagonal breaking of democratic S3 symmetry, we show that the singular normalization for the top quark is essential to reproduce observed quark masses and mixing angles. We also briefly argue other applications of this mechanism.",

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note = "Funding Information: This work was supported in part by the Grant-in-Aid from the Ministry of Education, Culture, Sports, Science and Technology, Japan, No. 12047201. M.K. thanks the Japan Society for the Promotion of Science for financial support.",

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