Probe of anomalous quartic WWZγ couplings in photon-photon collisions
نویسنده
چکیده
In this paper, we examine the potentials of the processes γγ → W+W−Z and e+e− → e+γ∗γ∗e− → e+W+W−Ze− at the CLIC with √s = 0.5, 1.5 and 3TeV to investigate anomalous quarticWWZγ couplings by two different CP-violating and CP-conserving effective Lagrangians. We find 95% confidence level sensitivities on the anomalous coupling parameters at the three CLIC energies and various integrated luminosities. The best sensitivities obtained from the process γγ → W+W−Z on the anomalous k W 0 Λ , k W c Λ and k 2 Λ couplings defined by CP-conserving effective Lagrangians are [−1.73; 1.73]× 10−7GeV−2, [−2.44; 2.44]×10−7 and [−1.89; 1.89]×10−7GeV−2, while an Λ coupling determined by CPviolating effective Lagrangians is obtained as [−1.74; 1.74]× 10−7GeV−2. In addition, the best sensitivities derived on k 0 Λ , k W c Λ and k 2 Λ and an Λ from the process e+e− → e+γ∗γ∗e− → e+W+W−Ze− are obtained as [−1.09; 1.09] × 10−6GeV−2, [−1.54; 1.54] × 10−6GeV−2, [−1.18; 1.18]× 10−6 and [−1.04; 1.04]× 10−6GeV−2, respectively.
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