Anomalous quartic ZZγγ couplings at the CLIC
Department of Optical Engineering, Cumhuriyet University, 58140, Sivas, Turkey
* e-mail: email@example.com
Revised: 7 March 2015
Accepted: 11 March 2015
Published online: 20 April 2015
We study the sensitivity to anomalous quartic ZZγγ couplings through the processes e + e − → Z Z γ, e + e − → e +γ* e − → e + Z Z e − and e + e − → e +γ*γ* e − → e + Z Z e − at the CLIC. We find 95% confidence level bounds on these coupling parameters defining by the dimension-six operators. The best bounds on the anomalous ZZγγ couplings among the three processes are obtained from e + e − → Z Z γ 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.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2015