论文标题
tau Lepton衰变中非标准无形粒子搜索的新方法
New method for non-standard invisible particle searches in tau lepton decays
论文作者
论文摘要
由建议解释标准模型异常的模型的动机，以及前所未有的$τ^{+}τ^{ - } $在接下来的几年中由Belle〜I II实验收集的数据，我们研究Tau对的动力学，并提出了一种新方法，并提出了一种新方法，以搜索Lepton after Intary of Stratch of Stratch $ tau Lepton decus tau lepton decus tau lepton dec decus， \ ellα$，其中$ \ ell $是电子或MUON，而$α$是逃脱未被发现的巨大粒子。新方法提高了一个数量级，即在3x1 prong tau衰减中$τ\ to \ellα$产量的预期上限，并确定了以前尚未考虑的1x1 prong tau衰减中进行此搜索的可能性。
Motivated by models proposed to explain the Standard Model anomalies, and the unprecedented $τ^{+}τ^{-}$ data to be collected by the Belle~II experiment during the next years, we study the kinematics of tau pair decays and propose a new method to search for lepton flavor violating processes in tau lepton decays to invisible beyond Standard Model particles, such as $τ\to \ell α$, where $\ell$ is either an electron or a muon, and $α$ is a massive particle that escapes undetected. The new method improves by one order of magnitude the expected upper limit on the $τ\to \ell α$ production in 3x1 prong tau decays and establishes the possibility of performing this search in 1x1 prong tau decays which has not been previously considered.
