论文标题
$ \ textit {cp} $ higgs-tau yukawa耦合的结构的测量
Measurement of the $\textit{CP}$ structure of the Higgs-tau Yukawa coupling
论文作者
论文摘要
LHC的CMS实验已进行了Yukawa耦合的Higgs Boson和Tau Leptons之间的CP结构的首次测量。该测量基于$ \ sqrt {s} = 13 $ tev在2016-18期间收集的数据，对应于$ 137 \ text {fb}^{ - 1} $的集成光度。该分析利用了Higgs Boson衰减中产生的Tau Leptons的衰减平面之间的角相关性，其中使用专用的分析技术来优化Tau衰减平面的重建。 CP混合角的测量值为$ 4 \ pm17^{\ Circ} $，$ 68 \％$置信度级别。纯$ \ textit {cp - } $奇数假设不包括$ 3.2 $标准偏差。提出了分析策略和测量结果。
The CMS experiment at the LHC has performed the first measurement of the CP structure of the Yukawa coupling between the Higgs boson and tau leptons. The measurement is based on data collected in proton-proton collisions at $\sqrt{s} = 13$ TeV during 2016-18, corresponding to an integrated luminosity of $137\text{ fb}^{-1}$. The analysis utilizes the angular correlation between the decay planes of tau leptons produced in Higgs boson decays, where dedicated analysis techniques are used to optimise the reconstruction of tau decay planes. The measured value of the CP mixing angle is $4\pm17^{\circ}$, at $68\%$ confidence level. The pure $\textit{CP-}$odd hypothesis is excluded by $3.2$ standard deviations. The analysis strategies and the results of the measurement are presented.
