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A revisit of the quark mass spectra and flavor mixing based on the S-3 flavor symmetry
Xu, J; Yang, XH; Yang DS(杨德山); Yang, DS
2016
发表期刊MODERN PHYSICS LETTERS A
卷号31期号:24
通讯作者杨德山
摘要In this paper, we propose a simple model based on the S-3 flavor symmetry, in which a perturbation ansatz is suggested that the flavor symmetry is explicitly broken down via S-3 -> Z(2) -> (empty set) in the up-quark sector and via S-3 -> Z(3) -> (empty set) in the down-quark sector. Our model is successful in obtaining the strong hierarchy of mass matrices of both up-type quarks and down-type quarks, but unsuccessful in obtaining the realistic mixing between the third generation and the first two, as in other models based on S-3 flavor symmetry proposed in the literature. Through detailed analysis, we find the reason for the unsuccesses in our model which is related to the reducibility of the three-dimensional representation of the S-3 group. We conclude that any perturbations in mass matrices preserving the partial symmetry of S-3 cannot help getting realistic mixing between the third generation and first two without fine-tuning.
文章类型Article
关键词Flavor symmetry quark mass spectra flavor mixing
DOI10.1142/S0217732316501315
关键词[WOS]CABIBBO ANGLES ; CP-VIOLATION ; HIERARCHY ; LEPTONS
语种英语
WOS记录号WOS:000382847200002
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/260633
专题理论物理室
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
Xu, J,Yang, XH,Yang DS,et al. A revisit of the quark mass spectra and flavor mixing based on the S-3 flavor symmetry[J]. MODERN PHYSICS LETTERS A,2016,31(24).
APA Xu, J,Yang, XH,杨德山,&Yang, DS.(2016).A revisit of the quark mass spectra and flavor mixing based on the S-3 flavor symmetry.MODERN PHYSICS LETTERS A,31(24).
MLA Xu, J,et al."A revisit of the quark mass spectra and flavor mixing based on the S-3 flavor symmetry".MODERN PHYSICS LETTERS A 31.24(2016).
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