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arXiv 1901.04060hep-ex
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在$\sqrt{s} =$ 13 WZ pp碰撞中电弱WZ玻色子产生的测量和$+$中新物理的探索

Measurement of electroweak WZ boson production and search for new physics in WZ $+$ two jets events in pp collisions at $\sqrt{s} =$ 13 TeV

CMS Collaboration

摘要:

本文介绍了WZ电弱矢量玻色子散射的测量。在轻子衰变模式WZ $\to$ $\ellν\ell'\ell'$中进行测量,其中$\ell, \ell' = $ e,$μ$。分析是基于质子-质子碰撞的数据样本在$\sqrt{s} =$ 13 TeV的LHC收集与CMS检测器和相应的积分光度为35.9 fb $^{-1}$。WZ加上两个射流生产横截面测量的基准区域与增强的贡献,从EW生产,并发现是符合标准模型的预测。与两个射流相关的EW WZ生产以2.2(2.5)标准差的观测(预期)显著性进行测量。荷电希格斯玻色子生产和异常四次规范耦合的八维有效场论运营商的约束。

英文摘要:

A measurement of WZ electroweak (EW) vector boson scattering is presented. The measurement is performed in the leptonic decay modes WZ $\to$ $\ellν\ell'\ell'$, where $\ell, \ell' = $ e, $μ$. The analysis is based on a data sample of proton-proton collisions at $\sqrt{s} =$ 13 TeV at the LHC collected with the CMS detector and corresponding to an integrated luminosity of 35.9 fb$^{-1}$. The WZ plus two jet production cross section is measured in fiducial regions with enhanced contributions from EW production and found to be consistent with standard model predictions. The EW WZ production in association with two jets is measured with an observed (expected) significance of 2.2 (2.5) standard deviations. Constraints on charged Higgs boson production and on anomalous quartic gauge couplings in terms of dimension-eight effective field theory operators are also presented.

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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