Pati-Salam unification with a spontaneous CP violation
Pati-Salam unification with a spontaneous CP violation
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Pati-Salam 统一与自发的 CP 违规
DOI：
10.1103/physrevd.100.055019
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发表时间：
2019
期刊：
影响因子：
--
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
最近的中微子振荡实验表明，轻子扇区中的Pontecorvo-Maki-Nakagawa-Sakata矩阵与夸克扇区中的Cabibbo-Kobayashi-Maskawa矩阵一样，存在着违反相。然而，这两种基质中这些相的起源现在还不清楚。虽然复杂的Yukawa耦合可以诱导这些相位，但即使在这种情况下，这些相位仍然是模型的自由参数。如果对称性被认为是自发破缺的，那么它们应该是在比普朗克尺度低得多的能量尺度上由某些物理学决定的。我们研究这种可能性的框架内的Pati-Salam型统一。我们还讨论了它的其他现象学问题。
Recent neutrino oscillation experiments suggest that the Pontecorvo-Maki-Nakagawa-Sakata matrix in the lepton sector has aviolating phase like the Cabibbo-Kobayashi-Maskawa matrix in the quark sector. However, the origins of these phases in both matrices are not clarified by now. Although complex Yukawa couplings could induce these phases, the phases remain as free parameters of the model even in that case. If thesymmetry is considered to be spontaneously broken, they are expected to be determined by some physics at a much lower energy scale than the Planck scale. We study such a possibility in a framework of Pati-Salam-type unification. We also discuss other phenomenological issues in it.