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arXiv 2202.10089hep-ph
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模$A_4$对称性和超对称破缺的辐射中微子质量

Radiative neutrino masses from modular $A_4$ symmetry and supersymmetry breaking

Hajime Otsuka, Hiroshi Okada

摘要:

在超对称框架下研究了一个模块化的$A_4$不变双圈中微子质量模型,在此模型中我们引入了尽可能少的新场,期望超伴子对中微子质量的贡献.我们成功地再现了中微子振荡数据的情况下,正常的层次结构,由于超伙伴的贡献,并预测几个观测值,如相位和中微子质量,集中在三个特定的区域附近的固定点的模量$τ=i,ω,i\times \infty$,其中$ω\equiv e^{2πi/3}$。这些点在统计上有利于弦论的通量紧化。我们通过执行全局$χ^2$分析,在每个点上显示几个结果,并使用最小的$χ^2$演示基准点。

英文摘要:

We investigate a modular $A_4$ invariant two-loop neutrino mass model in a supersymmetric framework, where we introduce new fields as minimum as possible, expecting contributions of superpartners to the neutrino masses. We successfully reproduce the neutrino oscillation data thanks to the superpartner contributions in case of normal hierarchy, and predict several observables such as phases and neutrino masses, concentrating on three specific regions at nearby fixed points of modulus $τ=i,ω,i\times \infty$, where $ω\equiv e^{2πi/3}$. These points are statistically favored in flux compactifications of the string theory. We show several results in each the points by performing global $χ^2$ analysis, and demonstrate benchmark points with the minimum $χ^2$.

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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