Search for anomalous quartic $WWZγ$ couplings at the future linear $e^{+}e^{-}$ collider

M. Köksal, A. Senol

Published 2014-06-10, updated 2014-11-23Version 2

In this work, the potential of two different processes $e^{+}e^{-}\rightarrow W^{-} W^{+}\gamma$ and $e^{+}e^{-} \rightarrow e^{+}\gamma^{*} e^{-} \rightarrow e^{+} W^{-} Z \nu_{e}$ at the Compact Linear Collider (CLIC) to probe the anomalous quartic $WWZ\gamma$ gauge couplings is examined. For $\sqrt{s}=0.5, 1.5$ and 3 TeV energies of the CLIC, we find $95\%$ confidence level limits on the anomalous coupling parameters defining the dimension-six operators in a model independent way by means of the effective Lagrangian approach. We show that the best limits obtained on the anomalous couplings $\frac{k_{0}^{W}}{\Lambda^{2}}$, $\frac{k_{c}^{W}}{\Lambda^{2}}$, $\frac{k_{2}^{m}}{\Lambda^{2}}$ and $\frac{a_{n}}{\Lambda^{2}}$ for the integrated luminosity of $L_{int}=590$ fb$^{-1}$ at the CLIC with $\sqrt{s}=3$ TeV are $[-8.80;\, 8.73]\times 10^{-8}$ GeV$^{-2}$, $[-1.53; \, 1.51]\times 10^{-7}$ GeV$^{-2}$, $[-3.75; \, 3.74]\times 10^{-7}$ GeV$^{-2}$ and $[-9.13;\,9.09]\times 10^{-7}$ GeV$^{-2}$, respectively.