Investigation of neutral triple gauge coupling via pp→ZZ production with anomalous coupling approach for future hadron colliders

Examining the self-couplings of Electroweak gauge bosons as determined by the non-Abelian gauge nature of the Standard Model (SM) provides an important opportunity for the validity of the SM and the existence of new physics beyond the SM to the high energy scale. The sensitivity of anomalous ZZZ and ZZ vertex couplings ( f_4^(γ,Z),f_5^(γ,Z) ) defined in the anomalous coupling approach is investigated for various future circular hadron collider options, namely HL-LHC (√s=14 TeV,Lint =3 ab^(-1)), HE-LHC (√s=27 TeV,Lint =5 ab^(-1) ), FCC-hh (√s=100 TeV,Lint =30 ab^(-1)) via pp ⟶ ZZ production with different decay channels of the Z boson. The signal and background events are generated with CalcHEP package program. The resulting events are passed through PYTHIA for hadron shower and Delphes for detector effects, and the kinematic distributions of the final state particles are obtained for the different decay channels of the Z boson. Sensitivities on the anomalous triple gauge couplings are We calculated with 95% confidence level via χ^2 test with the corresponding integrated luminosities of future hadron colliders for different decay channels of Z boson.