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

TL;DR

This study projects the sensitivity of the FCC-hh collider to anomalous neutral triple gauge couplings through ZZ production in the 2l2ν channel, setting new bounds on these couplings at 95% confidence level.

Contribution

It provides the first detailed projections of FCC-hh's capability to constrain anomalous neutral triple gauge couplings in the ZZ channel at 100 TeV.

Findings

Projected bounds on CP-conserving couplings: [-0.042, 0.042] TeV$^{-4}$.

Projected bounds on CP-violating couplings: approximately [-0.050, 0.050] TeV$^{-4}$.

Analysis includes realistic detector effects at FCC-hh.

Abstract

This paper presents the projections on the anomalous neutral triple gauge couplings ($aNTGC$) via $pp \rightarrow ZZ$ production in the 2$\ell$2$\nu$ 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 $C_{\widetilde{B}W} / \Lambda^{4}$ and CP-violating couplings $C_{WW} / \Lambda^{4}$, $C_{BW} / \Lambda^{4}$ and $C_{BB} / \Lambda^{4}$ 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.