论文标题
使用$ z $玻色子极化在LHC上研究异常量规耦合
Study of anomalous gauge-Higgs couplings using $Z$ boson polarization at LHC
论文作者
论文摘要
我们估计可以使用LHC上Higgstrahlung过程中产生的$ Z $玻色子的极化参数在异常$ ZZH $顶点上获得的模型无关的边界。我们从$ Z $的自旋密度矩阵元素中计算出八个独立的极化参数，该参数可以探测对$ ZH $生产的新物理贡献的基础。通过使用将这些极化可观察物与$ z $衰减产物的角度分布连接起来的方法，我们估计可以在14 TEV LHC上获得的异常$ ZZH $耦合的限制。
We estimate model-independent bounds that could be obtained on the anomalous $ZZH$ vertex using polarization parameters of the $Z$ boson produced in the Higgstrahlung process at the LHC. We calculate the eight independent polarization parameters from the spin density matrix elements of the $Z$, which can probe underlying new physics contributions to $ZH$ production. By using the approach that connects these polarization observables to the coefficients in the angular distribution of the decay products of the $Z$, we estimate the limits on the anomalous $ZZH$ coupling that can be obtained at the 14 TeV LHC.
