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arXiv 1809.03590hep-ex
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寻找在$\sqrt{s} =$ 13质子-质子碰撞中通过希格斯玻色子衰变到$τ$轻子的Higgs玻色子和矢量玻色子的相关产生

Search for the associated production of the Higgs boson and a vector boson in proton-proton collisions at $\sqrt{s} =$ 13 TeV via Higgs boson decays to $τ$ leptons

CMS Collaboration

摘要:

搜索的标准模型希格斯玻色子玻色子产生与W或Z玻色子和衰减的$τ$轻子对。质子-质子碰撞的数据样本收集在$\sqrt{s} =$ 13 TeV的CMS实验在欧洲核子研究中心的LHC,对应于35.9 fb $^{-1}$的综合光度。信号强度相对于标准模型希格斯玻色子的期望值进行测量,得到$μ=$ 2.5 $^{+1.4} _{-1.3}$。这些结果与早期的CMS测量相结合,目标是希格斯玻色子衰变到一对$τ$轻子,在胶子融合和矢量玻色子融合产生模式中使用相同的数据集进行。组合信号强度为$μ=$ 1.24 $^{+0.29} _{-0.27}$(预期为1.00 $^{+0.24} _{-0.23}$),对于质量为125 GeV的希格斯玻色子,观察到的显著性为5.5标准差(预期为4.8)。

英文摘要:

A search for the standard model Higgs boson produced in association with a W or a Z boson and decaying a pair of $τ$ leptons is performed. A data sample of proton-proton collisions collected at $\sqrt{s} =$ 13 TeV by the CMS experiment at the CERN LHC is used, corresponding to an integrated luminosity of 35.9 fb$^{-1}$. The signal strength is measured relative to the expectation for the standard model Higgs boson, yielding $μ=$ 2.5 $^{+1.4} _{-1.3}$. These results are combined with earlier CMS measurements targeting Higgs boson decays to a pair of $τ$ leptons, performed with the same data set in the gluon fusion and vector boson fusion production modes. The combined signal strength is $μ=$ 1.24 $^{+0.29} _{-0.27}$ (1.00 $^{+0.24} _{-0.23}$ expected), and the observed significance is 5.5 standard deviations (4.8 expected) for a Higgs boson mass of 125 GeV.

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。

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