论文标题
部分可观测时空混沌系统的无模型预测
Triple-product asymmetry in the radiative two-pion tau decay
论文作者
论文摘要
在这项工作中，我们对共鸣性手性理论中的$τ^ - \toπ^-π^0γν$衰减过程进行了详细研究。我们特别注意$τ^ - \toπ^-π^0γν$过程中的三产物不对称。同时包括最小的共振性手性拉格朗日和奇异的平等共振操作员来计算衰减振幅。研究了$π^-π^0 $，$π^-γ$和$π^0γ$系统中的各种不变质量分布，它们揭示了不同的共振动力学。我们进一步预测了有趣的非零三产品不对称分布，这可能为在Belle-II和Super Tau-Charm设施进行的未来实验测量提供了有用的指南。
In this work, we perform a detailed study of the $τ^-\toπ^-π^0γν$ decay process within the resonance chiral theory. We pay special attention to the triple-product asymmetry in the $τ^-\toπ^-π^0γν$ process. The minimal resonance chiral Lagrangian and the odd-intrinsic parity resonance operators are simultaneously included to calculate the decay amplitudes. Various invariant-mass distributions in the $π^-π^0$, $π^-γ$ and $π^0γ$ systems are studied and they reveal different resonance dynamics. We further predict the intriguing nonzero triple-product asymmetry distributions, which may provide useful guidelines for future experimental measurements conducted at the Belle-II and super tau-charm facilities.
