Probing Anomalous HZZ Couplings at the LHeC

TL;DR

This paper investigates the potential to detect anomalous Higgs-Z boson couplings at the LHeC collider, providing constraints on these couplings through specific electron-proton collision processes.

Contribution

It offers a model-independent analysis of Higgs to Z boson couplings at the LHeC, deriving new limits on anomalous couplings for different electron beam energies.

Findings

Limits on $b_{Z}$ coupling: (-0.12, 0.43) at 60 GeV and (-0.10, 0.33) at 140 GeV.

Limits on $eta_{Z}$ coupling: (-0.32, 0.32) at 60 GeV and (-0.24, 0.24) at 140 GeV.

Analysis demonstrates the LHeC's sensitivity to anomalous Higgs couplings.

Abstract

We examine the sensitivity to the couplings of the Higgs boson to neutral gauge bosons in a model independent way at the Large Hadron electron Collider (LHeC). We have obtained the constraints on anomalous couplings for $HZZ$ vertex via the process $e^{-}p\rightarrow e^{-}HqX$. We find the accessible limits of the anomalous coupling $b_{Z}$ as $(-0.12,0.43)$ and $(-0.10,0.33)$, while the limits on coupling $\beta_{Z}$ as ($-0.32,0.32$) and $(-0.24,0.24)$ at the electron beam energy $E_{e}=60$ GeV and $E_{e}=140$ GeV, respectively.