Anomalous quartic $ZZ\gamma \gamma$ couplings at the CLIC

We study the sensitivity to anomalous quartic $ZZ\gamma \gamma$ couplings through the processes $e^{+}{e}^{-}\to ZZ\gamma$, $e^{+}e^{-} \rightarrow e^{+}\gamma^{} e^{-} \rightarrow e^{+} Z, Z, e^{-}$and$e^{+}e^{-} \rightarrow e^{+}\gamma^{} \gamma^{*} e^{-} \rightarrow e^{+}, Z, Z, e^{-}$attheCLIC\mathrm{.}Wefind$95%$ confidence level bounds on these coupling parameters defining by the dimension-six operators. The best bounds on the anomalous $ZZ\gamma \gamma$ couplings among the three processes are obtained from $e^{+}{e}^{-}\to ZZ\gamma$ at a center of mass energy of $3$ TeV and an integrated luminosity of $590$ fb${}^{-1}$. We show that the best bounds obtained on both the anomalous coupling parameters are of the order of ${10}^{-8}$ GeV${}^{-2}$, significantly improving the current bounds.