Turkish Physical Society 35th International Physics Congress, Muğla, Turkey, 4 - 08 September 2019, pp.376-380
In the framework of two Higgs doublet model (2HDM), the associated production of neutral Higgs boson with a γ via an e-e+ collision is investigated at the one-loop level. On the other hand, the process at the tree level is suppressed by the electron mass. For numerical evaluation, a few benchmark points, which are compatible with theoretical and current experimental constraints, are chosen in the type-I of 2HDM. The dependence of the cross section on the center-of-mass energy is also presented at the various polarization configurations of the initial beams. It is shown that depending selected BPs, there is a deviation from the predictions of SM where the production rate is significantly enhanced. The cross section is enhanced up to about four times by the completely polarized right-handed positron and left-handed electron. At √s = 250 GeV, s2HDM(e-Le+R→h0γ) reaches to a value of 0.27 fb.