Constraining capability of Z γ h production at the ILC

Higgs boson couplings with gauge bosons are probed through e^-e⁺ → Zγh in an effective Lagrangian framework. For this study, the beam polarization facility at the ILC along with the typical center-of-mass energy of 500 GeV is considered. The reach of the ILC with an integrated luminosity of 300 fb^-1 in the determination of CP-conserving parameters is obtained. Sensitivity of the probe of each of these couplings in the presence of other couplings is investigated. The most influential coupling parameters are cW =-cB. Other parameters of significant effect are cHW and cHB. A detailed study of the various kinematic distributions represents possibilities to disentangle the effect of some of these couplings.