论文标题
一种测量米歇尔参数的新方法，该参数描述了$τ^ - \toμ^ - \barν_μν_τ$ decay中的女儿MUON极化
A new method for measurement of the Michel parameters that describe the daughter muon polarization in the $τ^- \to μ^- \barν_μν_τ$ decay
论文作者
论文摘要
本文提供了对$τ^ - \至μ^ - \barν_μν_τ$衰减与女儿Muon的极化相关的$τ^ - \ toμ^ - \barν_μν_τ$首次直接测量的方法的详细说明。考虑了建议的方法在现有的和将来的实验中以$ e^+e^ - $ colliders的形式应用。我们已经为未来的超级魅力工厂和Belle II实验进行了可行性研究。对于第一个，估计对米歇尔参数$ξ'$，$η''$，$α'/a $和$β'/a $的敏感性。对于后者，仅考虑一个米歇尔参数，即$ξ'$最大值。
This paper provides a detailed description of the method for the first direct measurement of all Michel parameters in the $τ^- \to μ^- \barν_μν_τ$ decay related to the polarization of the daughter muon. An application of the suggested method in the existing and future experiments at $e^+e^-$ colliders is considered. We have performed a feasibility study for the future Super Charm-Tau Factory and Belle II experiments. For the first one, the sensitivity to the Michel parameters $ξ'$, $ξ''$, $η''$, $α'/A$, and $β'/A$ is estimated. For the latter, only one Michel parameter, $ξ'$, for which the sensitivity is maximum, is considered.
