Phenomenology of the Higgs boson in the two Higgs doublet models

In this thesis, Two Higgs Doublet Model in which one of the Higgs doublets does not develop a vacuum expectation value (VEV), is studied. Then, the Higgs fields with zero VEV doesn't contribute to the physical masses of the SM particles, and its interactions with the SM particles can have more freedom. In this model, free parameters were scanned and data consistent with experiments were obtained. In particular, experimental measurements related to b->sgamma decay have been effective in constraining the data. The rho parameter requirement is satisfied by solutions with mh~<250GeV and 125~W+W- and h->b\bar{b}, excluded most of the solutions, while a small area remains consistent with SM. It is possible to obtain excess in h->gammagamma, by applying the constraints from the Higgs boson decays into W+W- and b\bar{b}. Similar analyzes are also performed for H, its did not exceed SM predictions. Finally, production cross-sections for Higgs boson in colliders with 14 and 100 TeV energies were compared.