We study the effect of sterile neutrino on some low scale processes in the framework of the minimal extended seesaw (MES). MES is the extension of the seesaw mechanism with the addition of sterile neutrino of intermediate mass. The MES model in this work is based on $\Delta(96)\times C_{2}\times C_{3}$ flavor symmetry. The structures of mass matrices in the framework lead to $TM_{1}$ mixing with $\mu \text{-}\tau$ symmetry. The model predicts the maximal value of the Dirac CP phase. We carry out our analysis to study the new physics contributions from the sterile neutrino to different charged lepton flavor violation (cLFV) processes involving muon and tau leptons as well as neutrinoless double beta decay (0$\nu\beta\beta$). The model predicts normal ordering (NO) of neutrino masses and we perform the numerical analysis considering normal ordering (NO) only. We find that a heavy sterile neutrino can lead to cLFV processes that are within the reach of current and planned experiments. The sterile neutrino present in our model is consistent with the current limits on the effective neutrino mass set by $0\nu\beta\beta$ experiments.

中文翻译：

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惰性中微子对具有 ∆(96) 对称性和 TM1 混合的最小扩展跷跷板低能过程的影响

我们在最小扩展跷跷板 (MES) 的框架内研究了无菌中微子对一些小规模过程的影响。MES 是跷跷板机制的延伸，增加了中等质量的无菌中微子。本工作中的 MES 模型基于 $\Delta(96)\times C_{2}\times C_{3}$ 风味对称性。框架中质量矩阵的结构导致 $TM_{1}$ 与 $\mu \text{-}\tau$ 对称性混合。该模型预测 Dirac CP 相位的最大值。我们进行分析以研究从无菌中微子到不同带电轻子风味破坏 (cLFV) 过程的新物理贡献，这些过程涉及 μ 子和 tau 轻子以及无中微子双β衰变 (0$\nu\beta\beta$)。该模型预测中微子质量的正常排序 (NO)，我们仅在考虑正常排序 (NO) 的情况下进行数值分析。我们发现重的无菌中微子可以导致当前和计划实验范围内的 cLFV 过程。我们模型中存在的惰性中微子与 $0\nu\beta\beta$ 实验设置的有效中微子质量的当前限制一致。