论文标题
$ e^-p $ collisions in the fcc-he的异常四分之一$wwzγ$耦合的界限
Bounds on anomalous quartic $WWZγ$ couplings in $e^-p$ collisions at the FCC-he
论文作者
论文摘要
标准模型的非阿布尔结构预测了仪表玻色子三重规耦合（TGC）和四分音量规耦合（QGC）的自身互动。另一方面，还必须通过异常的三重量规耦合（ATGC）和异常的四分音量规耦合（AQGC）来确定与标准模型（SM）的偏差，以测试标准模型（SM）的性质，并查看由超出标准模型（BSM）产生的新物理学的影响。在这项研究中，我们专注于$ e^-p \至JZγν_e\至J（l^{+} l^{ - }）γν_e$进程，以检查未来的Collider-Hadron Electron $ celtron Electron $ sqr $ 5在有效理论方法中使用与模型无关的方式使用TEV。采用基于剪切的方法来分析信号和相关的SM背景。使用总横截面，我们限制了异常的$ f_ {t，i = 0,1,1,2,5,6,7}/λ^4 $耦合，该dimension-8操作员以$ 95 \％$ pustrort Level（c.l.）的dilepton dearepton decay dilepton decAy dilepton decay dilepton decay dilepton decAl dilepton dearpton dearpton dearpton dearpton dearpton decA.-z $ -Olther。结果由$ {\ cal l} = 1,2 $和$ 3 $ \ $ \ rm ab^{ - 1} $的集成发光度组成。在计算中，我们使用形式来表达违反单位性的影响。这样，我们获得了构造因子$λ= 1 $ tev的能量尺度的限制。除此之外，我们还使用$ EP $碰撞的出现来分析该过程，并与$ pp $碰撞相比，更清洁的环境和较低的背景效果。在$ f_ {t，i = 0,1,2,5,6,7}/λ^4 $上获得的敏感性与实验结果和文献中相关的现象学研究相媲美。
Non-Abelian structure of the Standard Model predicts the self-interactions of gauge bosons triple gauge couplings (TGC) and quartic gauge couplings (QGC). On the other hand, it is also important to determine the deviations from Standard Model (SM) via anomalous triple gauge couplings (aTGC) and anomalous quartic gauge couplings (aQGC) to test the nature of the Standard Model (SM) and to see the effects of new physics arising from the beyond standard model (BSM). In this study, we focus on the $e^-p \to j Zγν_e \to j (l^{+} l^{-})γν_e$ process to examine the $WWZγ$ anomalous quartic gauge couplings (aQGC) at the Future Circular Collider-hadron electron (FCC-he) with center-of-mass energy $\sqrt{s}=5.29$ TeV using with a model-independent way in the effective theory approach. A Cut-based method are applied to analyse the signal and relevant SM background. Using with the total cross-sections, we constrained on the anomalous $ f_ {T,i=0,1,2,5,6,7}/Λ^4$ couplings arising from dimension-8 operators at $95\%$ Confidence Level (C.L.) for the dilepton decay of the $Z$-boson. The results are composed with integrated luminosities of ${\cal L}=1,2$ and $3$ $\rm ab^{-1}$ under the systematic uncertainties of $\%0$, $\%5$ and $\%10$. In the calculations, we use the form factor to eleminate the effects of the violation of unitarity. With this, we obtained the limits for the energy scale of the form factor $Λ=1$ TeV. In addition to all this, we use the adventages of $ep$ collisions for analysing the process with much cleaner environment and lower background effects comparing with the $pp$ collisions. The obtained sensitivities on $ f_ {T,i=0,1,2,5,6,7}/Λ^4$ are comparable with the experimental results and related phenomenological studies in the literature.
