Neutral Higgs boson pair production via photon-photon collision in the two Higgs doublet model

Demirci M.

Turkish Physical Society 35th International Physics Congress, Muğla, Turkey, 4 - 08 September 2019

  • Publication Type: Conference Paper / Full Text
  • City: Muğla
  • Country: Turkey
  • Karadeniz Technical University Affiliated: Yes


In the framework of two Higgs doublet model (2HDM), the direct pair production of the neutral Higgs boson is evaluated at a gg-collider, considering the full one-loop diagrams. To show the effect of the new physics, four benchmark points are selected in the type-I 2HDM, and they are compatible with current experimental and theoretical constraints. The total cross section is calculated as a function of the c. m. energy for both the opposite and the same polarization of the initial photons. The differential cross section is also presented in both 2HDM and SM for √s = 500 GeV. The total cross section can be enhanced by the oppositely polarized photons as well as threshold effects. It is shown that depending on model parameters, the production rate is significantly enhanced in 2HDM, compared to the predictions of SM.