Constraining capability of Zγh production at the ILC

Higgs boson couplingswith gauge bosonsare 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- massenergy 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 couplingsin the presence of other couplingsis investigated. The most influential coupling parametersare 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.