论文标题

无菌中微子对最小值的低能过程的影响,以$δ(96)$对称和$ \ text {tm} _ {1} $混合

Effect of sterile neutrino on low energy processes in minimal extended seesaw with $Δ(96)$ symmetry and $\text{TM}_{1}$ mixing

论文作者

Gautam, Nayana, Krishnan, R., Das, Mrinal Kumar

论文摘要

我们研究无菌中微子对最小伸出的Seesaw(MES)框架中一些低尺度过程的影响。 MES是Seesaw机制的扩展,加入了中间质量的无菌中微子。这项工作中的MES模型基于$δ(96)\ times c_ {2} \ times c_ {3} $味道对称。框架中质量矩阵的结构导致$ tm_ {1} $与$μ\ text { - }τ$对称性混合。该模型预测了Dirac CP相的最大值。我们进行分析,以研究从无菌中微子到不同带电的Lepton侵犯(CLFV)过程的新物理学贡献,这些过程涉及MUON和TAU LEPTON以及中微子Double Beta衰减(0 $νββ$)。该模型可以预测中微子质量的正常排序(NO),我们仅考虑正常排序(NO)进行数值分析。我们发现,GEV范围内的无菌中微子质量可以导致CLFV过程,而CLFV过程在当前和计划的实验范围内。在我们的模型中,GEV量表无菌神经trino与$0νβ$实验设置的有效中微子质量的当前限制一致。

We study the effect of sterile neutrino on some low scale processes in the framework of 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 $Δ(96)\times C_{2}\times C_{3}$ flavor symmetry. The structures of mass matrices in the framework lead to $TM_{1}$ mixing with $μ\text{-}τ$ symmetry. The model predicts maximal value of 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$νββ$). The model predicts normal ordering (NO) of neutrino masses and we perform the numerical analysis considering normal ordering (NO) only. We find that sterile neutrino mass in GeV range can lead to cLFV processes that are within the reach of current and planned experiments. The GeV scale sterile neurtrino in our model is consistent with the current limits on the effective neutrino mass set by $0νββ$ experiments.

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