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外文期刊>The journal of high energy physics
>Probing triple-W production and anomalous WWWW coupling at the CERN LHC and future $$ mathcal{O}(100) $$ TeV proton-proton collider
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Probing triple-W production and anomalous WWWW coupling at the CERN LHC and future $$ mathcal{O}(100) $$ TeV proton-proton collider
A bstract Triple gauge boson production at the LHC can be used to test the robustness of the Standard Model and provide useful information for VBF di-boson scattering measurement. Especially, any derivations from SM prediction will indicate possible new physics. In this paper we present a detailed Monte Carlo study on measuring W _(±) W _(±) W _(?)production in pure leptonic and semileptonic decays, and probing anomalous quartic gauge WWWW couplings at the CERN LHC and future hadron collider, with parton shower and detector simulation effects taken into account. Apart from cut-based method, multivariate boosted decision tree method has been exploited for possible improvement. For the leptonic decay channel, our results show that at the s = 8 14 100 $$ sqrt{s}=8(14)left[100ight] $$ TeV pp collider with integrated luminosity of 20(100)[3000] fb_(?1), one can reach a significance of 0.4(1.2)[10] σ to observe the SM W _(±) W _(±) W _(?)production. For the semileptonic decay channel, one can have 0.5(2)[14] σ to observe the SM W _(±) W _(±) W _(?)production. We also give constraints on relevant Dim-8 anomalous WWWW coupling parameters.
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机译：LHC的Bstract三仪型玻色子生产可用于测试标准模型的稳健性，并为VBF Di-Boson散射测量提供有用的信息。特别是，SM预测的任何导出都会表明可能的新物理学。在本文中，我们在纯Leptonic和半沉默中测量W _（±）W _（α）生产的详细的蒙特卡罗研究，并在CERN LHC和未来Hadron Coller探测了异常的四分之一仪表网站上的耦合，Parton淋浴和探测器模拟效果考虑。除了基于切割的方法之外，多元化的促进决策树方法已被利用以实现可能的改进。对于Leptonic衰减频道，我们的结果表明，在S = 8 14 100 $$$$$ sqrt {s} = 8（14） left [100 Light] $$ Tev PP撞机带有20（100）的集成光度[ 3000] FB _（α1），可以达到0.4（1.2）[10]σ的显着性，以观察SM W _（±）W _（±）W _（α）的生产。对于半食盘衰减通道，可以具有0.5（2）[14]σ，观察SM W _（±）W _（±）W _（？）生产。我们还对相关的DIM-8异常wwww耦合参数提供限制。
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