论文标题
用有效的$ HB \ bar bg $耦合在LHC探测重型标量
Probing heavy scalars with an effective $Hb\bar bg$ coupling at the LHC
论文作者
论文摘要
我们已经探索了探测与一个$ b $ QUARK合作产生的中性标量（$ H $）的前景，并在LHC上看到了一对$ b $ QUARKS，其中具有Mass Energy $ \ sqrt s = 14 $ tev的LHC。在这方面，我们采用了一种有效的理论方法来参数化$ HB \ bar bg $顶点，该尺寸由六个操作员产生，该操作员涵盖了某些新物理设置的效果，以高度进行。我们仅专注于五味的方案，以确定14 TEV LHC在探测有效耦合时的灵敏度，这是标量质量的函数，以最高的投影发光度，$ 3000〜 {\ rm fb}^{ - 1} $。通过我们使用机器学习算法的多元分析，我们表明，在有效交互的威尔逊系数的扰动限制范围内，可以在两个不同的信号区域中获得统计显着性3σ$的证据，以$ m_h \ lyseSim 2 $ 2 $ tev和新物理学的规模$λ= 3 $ tev。
We have explored the prospect of probing a neutral scalar ($H$) produced in association with one $b$-quark and decaying either invisibly or into a pair of $b$-quarks at the LHC with centre of mass energy $\sqrt s = 14$ TeV. In this regard, we adopt an effective theory approach to parameterize a $Hb\bar bg$ vertex arising from a dimension six operator that encompasses the effect of some new physics setting in at a high scale. We concentrate solely on the five-flavor scheme to ascertain the sensitivity of the 14 TeV LHC in probing such an effective coupling as a function of the scalar mass at the highest possible projected luminosity, $3000~{\rm fb}^{-1}$. Through our multivariate analysis using machine learning algorithm we show that staying within the perturbative limit of the Wilson coefficient of the effective interaction, evidence with statistical significance of $3σ$ can be obtained in two different signal regions for $m_H\lesssim 2$ TeV and the scale of new physics $Λ= 3$ TeV.
