New class of solutions to the strong CP problem with a small two-loop θ -: art. no. 051901

被引：9

作者：

Chang, D ^{[1
]}

Keung, WY

机构：

[1] Natl Tsing Hua Univ, Dept Phys, Hsinchu 300, Taiwan

[2] Univ Illinois, Dept Phys, Chicago, IL 60607 USA

来源：

PHYSICAL REVIEW D | 2004年 / 70卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.70.051901

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a new class of models which produce zero theta(QCD) angle at the tree and one-loop level due to Hermiticity of sub-blocks in the extended quark mass matrices. The structure can be maintained typically by nonAbelian generation symmetry. Two examples are given for this class of solutions.

引用

页码：051901 / 1

页数：5

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