Study on the sensitivity of the Higgs boson couplings in photon-photon collision at CLIC and muon collider

Abstract

In a model-independent way, we explore the potential of photon-induced interactions with the process ${\gamma }^{\ast }{\gamma }^{\ast }\to ZZ$ to investigate CP-conserving and CP-violating dimension-six operators of Higgs-gauge boson couplings using the Standard Model Effective Field Theory (SMEFT). The existence of anomalous $H\gamma \gamma$ and $HZZ$ couplings is discussed at 3 TeV Compact Linear Collider (CLIC) and 10 TeV Muon Collider (MuC) with integrated luminosities of 5 and 10 ab${}^{-1}$, respectively. All signal and relevant background events are generated in MadGraph and passed through PYTHIA for parton showering and hadronization. The detector effects are evaluated using CLIC and MuC detector cards tuned in Delphes. We report the 95% confidence level limits on the Wilson coefficients ${\overline{c}}_{\gamma }$, ${\overline{c}}_{HB}$, ${\overline{c}}_{HW}$, ${\tilde{c}}_{\gamma }$, ${\tilde{c}}_{HB}$, and ${\tilde{c}}_{HW}$ and compare them with the experimental and phenomenological limits.

arXiv comment21 pages, 9 figures

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• Probing CP-violating Higgs-gauge Boson Couplings at Future Muon Collider
• The effects of Higgs boson couplings through HZZ production at future lepton colliders
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