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arXiv 2102.01989hep-ph
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通过FCC-hh的$\ell \ell νν$通道中的$ZZ$产生寻找异常中性三规范耦合的极限

Search for the limits on anomalous neutral triple gauge couplings via $ZZ$ production in the $\ell \ell νν$ channel at FCC-hh

Ali Yilmaz

摘要:

本文给出了在100 TeV质子-质子对撞机\verb“FCC-hh”上通过2 $\ell$ 2 $ν$末态产生$pp \rightarrow ZZ$的反常中性三重规范耦合($aNTGC$)的投影。分析中考虑了\verb“FCC-hh”探测器的实际环境及其影响。该研究是在一个Z玻色子衰变为一对相同味道,相反符号的轻子(电子或μ子),另一个衰变为两个中微子的模式下进行的。在95%置信水平(C. L.)下得到了电荷宇称守恒耦合$C_{\widetilde{B}W} / Λ^{4}$和电荷宇称破坏耦合$C_{WW} / Λ^{4}$、$C_{BW} / Λ^{4}$和$C_{BB} / Λ^{4}$的新的界限。使用双轻子系统的横向动量($p_{T}^{\ell \ell}$)的分别是$[-\, 0.042, \,\, +\,0.042]$、$[-\,0.050, \,\, +\,0.050]$、$[-\,0.050, \,\, +\,0.050]$和$[-\,0.048, \,\, +\,0.048]$,单位为TeV $^{-4}$。

英文摘要:

This paper presents the projections on the anomalous neutral triple gauge couplings ($aNTGC$) via $pp \rightarrow ZZ$ production in the 2$\ell$2$ν$ final state at a 100 TeV proton-proton collider, \verb"FCC-hh". %100 TeV center of mass energy of The realistic \verb"FCC-hh" detector environments and its effects taken into account in the analysis. The study is carried out in the mode where one Z boson decays into a pair of same-flavor, opposite-sign leptons (electrons or muons) and the other one decays to the two neutrinos. The new bounds on the charge-parity (CP)-conserving couplings $C_{\widetilde{B}W} / Λ^{4}$ and CP-violating couplings $C_{WW} / Λ^{4}$, $C_{BW} / Λ^{4}$ and $C_{BB} / Λ^{4}$ achived at 95\% Confidence Level (C.L.) using the transverse momentum of the dilepton system ($p_{T}^{\ell \ell}$) are $[-\, 0.042, \,\, +\,0.042]$, $[-\,0.050, \,\, +\,0.050]$, $[-\,0.050, \,\, +\,0.050]$, and $[-\,0.048, \,\, +\,0.048]$ in units of TeV$^{-4}$, respectively.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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