An extension of the SM based on effective Peccei-Quinn Symmetry
An extension of the SM based on effective Peccei-Quinn Symmetry
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基于有效 Peccei-Quinn 对称性的 SM 扩展
DOI：
10.1140/epjc/s10052-018-6370-3
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Daijiro Suematsu
中科院分区：
文献类型：
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作者：
Hashimoto Tsuyoshi;Suematsu Daijiro;Daijiro Suematsu;Daijiro Suematsu;Daijiro Suematsu
Peccei-Quinn（PQ）机制基于手征整体U（1）对称性，被认为是解决强CP问题的一种简单而优雅的方法.事实上，该机制可以通过轴子搜索进行实验研究，这使得它更加有趣，最近它再次引起了很多关注。然而，它也是已知的，该机制是困扰由两个严重的问题，即，一个畴壁问题和良好的整体对称性。由于引力的量子效应，任何全局对称性都被认为是不精确的。在本文中，我们考虑了这些问题的解决方案，其中夸克质量等级和混合，中微子质量产生和暗物质的存在密切相关。在我们的解决方案中，PQ对称性被认为是通过在局部U（1）对称性的中间尺度上的对称性破缺和起Froggatt-Nielsen对称性作用的全局U（1）对称性诱导的。在轻子区，PQ对称性的残余控制着中微子质量的产生和暗物质的存在。
Peccei–Quinn (PQ) mechanism based on a chiral globalU(1) symmetry is considered to be a simple and elegant solution for strongCPproblem. The fact that the mechanism could be experimentally examined through the axion search makes it much more interesting and recently it causes a lot of attention again. However, it is also known that the mechanism is annoyed by two serious problems, that is, a domain wall problem and goodness of global symmetry. Any global symmetry is considered not to be exact due to the quantum effect of gravity. In this paper, we consider a solution to these problems, in which quark mass hierarchy and mixing, neutrino mass generation and existence of dark matter are closely related. In our solution, PQ symmetry is assumed to be induced through symmetry breaking at an intermediate scale of a local U(1) symmetry, and a global U(1) symmetry which plays a role of Froggatt–Nielsen symmetry . In the lepton sector, a remnant of the PQ symmetry controls neutrino mass generation and dark matter existence.