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arXiv 2211.04546hep-ph
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一个极小模不变中微子模型

A minimal modular invariant neutrino model

Gui-Jun Ding, Xiang-Gan Liu, Chang-Yuan Yao

摘要:

我们提出了一个基于模对称性的中微子质量模型,该模型具有迄今为止最少的输入参数,通过包括模在内的6个实自由参数成功地解释了12个轻子质量和混合参数.中微子质量为正常有序,大气角$θ_{23}$接近最大值,狄拉克CP相位$δ_{CP}$约为$1.34π$ .我们还研究了在这个极小模型中由模$F$ -项引起的软超对称破缺项,它们被约束为非全纯模形式。讨论了辐射轻子味破坏过程$μ\to eγ$。

英文摘要:

We present a neutrino mass model based on modular symmetry with the fewest input parameters to date, which successfully accounts for the 12 lepton masses and mixing parameters through 6 real free parameters including the modulus. The neutrino masses are predicted to be normal ordering, the atmospheric angle $θ_{23}$ is quite close to maximal value and the Dirac CP phase $δ_{CP}$ is about $1.34π$. We also study the soft supersymmetry breaking terms due to the modulus $F$-term in this minimal model, which are constrained to be the non-holomorphic modular forms. The radiative lepton flavor violation process $μ\to eγ$ is discussed.

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