论文标题
通过$WγJJJ$生产在LHC上对异常的四分音量规耦合的限制
Constraints on anomalous quartic gauge couplings via $Wγjj$ production at the LHC
论文作者
论文摘要
大型强子对撞机（LHC）处的载体玻色子散射对异常的四分音量规耦合（AQGC）敏感。在本文中，我们研究了LHC $wγJJJ$生产的AQGC贡献，并在有效的田间理论（EFT）的背景下使用$ \ sqrt {s} = 13 $ tev。将单位性结合用于该生产过程的能量尺度的削减，发现对信号具有重大抑制作用。为了增强统计意义，我们详细分析了AQGC信号的运动学和极化特征。我们发现AQGC引起的极化效应是唯一的，并且可以很好地区分SM背景的信号。通过提出的事件选择策略，我们获得了具有当前亮度的Dimension-8运算符系数的约束。结果表明，$ pp \ towγJJJ$的过程对于搜索$ o_ {m_ {2,3,4,5}} $和$ o_ {t_ {5,6,7}} $ operators的功能强大。
The vector boson scattering at the Large Hadron Collider (LHC) is sensitive to anomalous quartic gauge couplings (aQGCs). In this paper, we investigate the aQGC contribution to $ W γjj$ production at the LHC with $\sqrt{s}=13$ TeV in the context of an effective field theory (EFT). The unitarity bound is applied as a cut on the energy scale of this production process, which is found to have significant suppressive effects on the signals. To enhance the statistical significance, we analyse the kinematic and polarization features of the aQGC signals in detail. We find that the polarization effects induced by the aQGCs are unique and can discriminate the signals from the SM backgrounds well. With the proposed event selection strategy, we obtain the constraints on the coefficients of dimension-8 operators with current luminosity. The results indicate that the process $pp \to W γjj$ is powerful for searching for the $O_{M_{2,3,4,5}}$ and $O_{T_{5,6,7}}$ operators.
