论文标题
RGE引起的$μ$ - $τ$对称破坏：对最新T2K结果的分析
RGE-induced $μ$-$τ$ symmetry breaking: an analysis of the latest T2K results
论文作者
论文摘要
T2K协作最近报告了他们的结果，这给出了大气混合角$ \ sin^2θ_{23} = 0.53 $的最佳拟合值，而Dirac CP-CP-violation阶段$δ= -1.89 $，用于正常中微子质量订单。我们基于$ $ - $τ$反射对称性提供了此类值的理论来源。已经发现，在最小超对称标准模型的框架中，使用单环重归于组方程（RGE）破坏了这种对称性，可以很好地与最新的T2K结果和最近的全局拟合非常吻合。为了进行定量分析，我们首次将振荡，β衰变，中微子双β衰减和宇宙学观察结果的完整数据集进行了比较。我们还进一步研究了这种破裂模式对于中性链双β衰减实验的重要性。
The T2K collaboration has recently reported their results, which gives the best-fit values of the atmospheric mixing angle $\sin^2 θ_{23} = 0.53$ and the Dirac CP-violating phase $δ= -1.89$ for normal neutrino mass ordering. We give a possible theoretical origin of such values based on the $μ$-$τ$ reflection symmetry. It has been found that the breaking of such symmetry using one-loop renormalization-group equations (RGEs) in the framework of minimal supersymmetric standard model can fit well with the latest T2K results and the recent global fits. To make a quantitative analysis, we have included for the first time the complete dataset of oscillation, beta decay, neutrinoless double-beta decay and cosmological observations in comparing the theory to experiments. We also further examine the importance of such breaking patterns for neutrinoless double-beta decay experiments.
