The T2K collaboration has recently reported their results, which gives the best-fit values of the atmospheric mixing angle \(\sin ^2 \theta _{23} = 0.53\) and the Dirac CP-violating phase \(\delta = -1.89\) for normal neutrino mass ordering. We give a possible theoretical origin of such values based on the \(\mu \)-\(\tau \) 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.

T2K合作组织最近报告了他们的结果，该结果给出了大气混合角\（\ sin ^ 2 \ theta _ {23} = 0.53 \）和Dirac CP违反相位\（\ delta =- 1.89 \）用于正常的中微子质量排序。我们基于\（\ mu \） - \（\ tau \）给出此类值的可能理论来源反射对称。已经发现，在最小超对称标准模型框架内使用单环重整化组方程（RGE）打破这种对称性可以很好地适应最新的T2K结果和最新的全局拟合。为了进行定量分析，我们首次将振荡，β衰变，无中微子双β衰变以及宇宙学观测的完整数据集包括在内，将理论与实验进行了比较。我们还进一步检查了这种打破模式对于无微子双β衰变实验的重要性。