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arXiv 1301.6764hep-ph
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约束序贯优势2下A4xSU(5)中的自发CP破坏

Spontaneous CP violation in A4xSU(5) with Constrained Sequential Dominance 2

Stefan Antusch, Stephen F. King, Martin Spinrath

摘要:

我们重新审视了一个具有两个纹理零点的双右手中微子模型,即一个基于A4的间接模型,该模型具有最近提出的新型约束序贯优势(CSD 2),涉及味空间中沿(0,1,-1)^T和(1,0,2)^T方向的真空排列,这些方向与中微子Dirac质量矩阵列成比例。在本文中,我们沿着这些路线构造了一个可重整化的统一的间接A4 × SU(5)模型,并表明,在自发CP破坏和适当的真空相位排列下,带电轻子修正导致的反应堆角与大亚湾和RENO的结果符合得很好。该模型预测了一个直角幺正三角形的夸克部门和狄拉克CP违反振荡相位在轻子部门的δ约130度,同时提供了一个很好的适合所有的夸克和轻子的质量和混合角。

英文摘要:

We revisit a two right-handed neutrino model with two texture zeros, namely an indirect model based on A4 with the recently proposed new type of constrained sequential dominance (CSD2), involving vacuum alignments along the (0,1,-1)^T and (1,0,2)^T directions in flavour space, which are proportional to the neutrino Dirac mass matrix columns. In this paper we construct a renormalizable and unified indirect A4xSU(5) model along these lines and show that, with spontaneous CP violation and a suitable vacuum alignment of the phases, the charged lepton corrections lead to a reactor angle in good agreement with results from Daya Bay and RENO. The model predicts a right-angled unitarity triangle in the quark sector and a Dirac CP violating oscillation phase in the lepton sector of delta approximately 130 degrees, while providing a good fit to all quark and lepton masses and mixing angles.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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