Probe of anomalous quartic $WWZ\gamma$ couplings in the photon-photon collisions

Abstract

In this paper, we examine the potentials of the processes $\gamma \gamma \to W^{+}{W}^{-}Z$ and $e^{+}{e}^{-}\to e^{+}{\gamma }^{\ast }{\gamma }^{\ast }{e}^{-}\to e^{+}{W}^{+}{W}^{-}Z{e}^{-}$ at the CLIC with $\sqrt{s}=0.5,1.5$ and $3$ TeV to investigate anomalous quartic $WWZ\gamma$ couplings by two different CP-violating and CP-conserving effective Lagrangians. We find $95\%$ confidence level limits on the anomalous coupling parameters at the three CLIC energies and various integrated luminosities. The best limits obtained from the process $\gamma \gamma \to W^{+}{W}^{-}Z$ on the anomalous $\frac{k_0^W}{{\Lambda }^2}$, $\frac{k_c^W}{{\Lambda }^2}$ and $\frac{k_2^m}{{\Lambda }^2}$ couplings defined by CP-conserving effective Lagrangians are $[-1.73;1.73]\times 10^{-7}$ GeV${}^{-2}$, $[-2.44;2.44]\times 10^{-7}$ and $[-1.89;1.89]\times 10^{-7}$ GeV${}^{-2}$, while $\frac{a_n}{{\Lambda }^2}$ coupling determined by CP-violating effective Lagrangians is obtained as $[-1.74;1.74]\times 10^{-7}$ GeV${}^{-2}$. In addition, the best limits derived on $\frac{k_0^W}{{\Lambda }^2}$, $\frac{k_c^W}{{\Lambda }^2}$ and $\frac{k_2^m}{{\Lambda }^2}$ and $\frac{a_n}{{\Lambda }^2}$ from the process $e^{+}{e}^{-}\to e^{+}{\gamma }^{\ast }{\gamma }^{\ast }{e}^{-}\to e^{+}{W}^{+}{W}^{-}Z{e}^{-}$ are obtained as $[-1.09;1.09]\times 10^{-6}$ GeV${}^{-2}$, $[-1.54;1.54]\times 10^{-6}$ GeV${}^{-2}$, $[-1.18;1.18]\times 10^{-6}$ and $[-1.04;1.04]\times 10^{-6}$ GeV${}^{-2}$, respectively.

Comments: 33 pages, 27 figures, 4 tables, version to appear in JHEP