arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2103.09633hep-ex
收藏

H $\rightarrow$ ZZ的物理势$^{*}$在CEPC衰变

Physics potential for the H$\rightarrow$ZZ$^{*}$ decay at the CEPC

Ryuta Kiuchi, Yanxi Gu, Min Zhong, Lingteng Kong, Alex Schuy, Shih-Chieh Hsu, Xin Shi, Kaili Zhang

摘要:

对在环形正负电子对撞机(CEPC)上进行的希格斯玻色子衰变为一对$Z$玻色子过程的产额测量精度进行了评估。包括反冲$Z$玻色子与希格斯粒子的生产(希格斯辐射),总共三个$Z$玻色子涉及这个通道,从最终状态的特点是存在一对轻子,夸克和中微子的信号被选择。两种分析方法进行了比较,并使用基于提升决策树的多变量分析技术,估计$σ_{\mathrm{ZH}}{\cdot}$ BR($H \rightarrow ZZ^{*}$)的最终精度为7.9%。希格斯玻色子宽度的相对精度,使用这种$H \rightarrow ZZ^{*}$衰变拓扑结构,估计所得到的结果与包容性的\textit{ZH}截面测量的精度相结合。

英文摘要:

The precision of the yield measurement of the Higgs boson decaying into a pair of $Z$ bosons process at the Circular Electron Positron Collider (CEPC) is evaluated. Including the recoil $Z$ boson associated with the Higgs production (Higgsstrahlung) total three $Z$ bosons are involved for this channel, from which final states characterized by the presence of a pair of leptons, quarks, and neutrinos are chosen for the signal. Two analysis approaches are compared and the final precision of $σ_{\mathrm{ZH}}{\cdot}$BR($H \rightarrow ZZ^{*}$) is estimated to be 7.9% using a multivariate analysis technique, based on boosted decision trees. The relative precision of the Higgs boson width, using this $H \rightarrow ZZ^{*}$ decay topology, is estimated by combining the obtained result with the precision of the inclusive \textit{ZH} cross section measurement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑