Study of anomalous WWγγ coupling sensitivity at the Compact Linear Collider

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The Compact Linear Collider (CLIC) is one of the most popular linear colliders, planned to realize e⁻e⁺ collisions in three energy stages of 0.5, 1.5, and 3 TeV. It has an energy scale never reached by any existing lepton collider. In this study, we present the sensitivity studies of the WWγγ anomalous quartic gauge boson coupling (aQGC) in the three different processes e⁺e⁻→ W⁻ W⁺γ, e⁺e⁻ → e⁺γ* e⁻ → e⁺ W⁻ γνₑ, and e⁺e⁻ → e⁺γ* γ* e⁻ → e⁺ W⁻ W⁺ e⁻ at the CLIC. We obtained 95% confidence level limits on the aQGC parameters a₀Λ² and acΛ² at various integrated luminosities and center-of-mass energies. The best limits obtained on the aQGCs a₀Λ² and acΛ² in these processes are at the order of 10⁻² TeV⁻² and 10⁻¹ TeV⁻², respectively.