Prediction for the Anomalous ZZZ and ZZγ Couplings via two Z-boson Production at the CLIC

Authors : Emre GÜRKANLI

Pages : 232-246

Doi:10.31466/kfbd.1240083

View : 14 | Download : 10

Publication Date : 2023-03-15

Article Type : Research Paper

Abstract :The non-Abelian nature of the Standard Model insert ignore into journalissuearticles values(SM); entails the existence of the gauge bosons\` self-interactions. The gauge bosons\` self-interactions are important to test the SM and see the new physics effects. These effects can be analyzed in the effective theory approach which is the main aim of this study. We examine the ZZZ and ZZγ anomalous neutral triple gauge couplings insert ignore into journalissuearticles values(aNTGC); via the process e^- e^+→ZZ with both unpolarized and polarized electron beam with the √s=3 TeV at CLIC. In the final state, semi-leptonic decay of Z-bosons insert ignore into journalissuearticles values(Z→jj , Z→ν_l insert ignore into journalissuearticles values(ν_l ); ̅ ); are considered. We focused on CP-violating C_BB/Λ^4 , C_BW/Λ^4 , C_WW/Λ^4 and CP-conserving C_insert ignore into journalissuearticles values(B ̅W);/Λ^4 couplings. The sensitivities are obtained at 95% Confidence Level with luminosities of L_int=5 ab-1, L_int=1 ab-1 and L_int=4 ab-1 for unpolarized, 80% and -80% polarized electron beams, respectively. Obtained sensitivities on anomalous couplings are 3-20 times stringent than the current experimental limits and comparable with the related phenomenological studies in the literature.
Keywords : Electroweak Interaction, Anomalous Triple Gauge Boson Couplings, Beyond Standard Model