Study of the projected sensitivity on the anomalous quartic gauge couplings via Zγγ production at the CLIC
Abstract
Gauge boson self-couplings are completely defined by the non-Abelian gauge symmetry of the Standard Model (SM). For this reason, a direct search for these couplings is extremely significant in understanding the gauge structure of the SM. The possible deviation from the SM predictions of gauge boson self-couplings would be a sign of the presence of new physics beyond the SM. In this work, we study the sensitivities on the anomalous couplings defined by dimension-8 operators related to the Z Z γ γ and Z γ γ γ quartic vertices through the process e+ e−→ Z γ γ with Z-boson decaying to charged leptons at the Compact Linear Collider (CLIC). We analyze the center-of-mass energy of 3 TeV, integrated luminosities of L= 1, 4, 5 a b− 1, systematic uncertainties of δ s y s= 0%, 3%, 5%, unpolarized and polarized electron beams and considering the Initial State Radiation and Beamstrahlung effects for extraction of …