Carving out parameter space in type-II two Higgs doublets model

Abstract

We analyze the Type-II two Higgs doublets model in light of the newly discovered Higgs-like particle with mass 125 GeV. The observed 125 GeV particle is identified with the light CP-even Higgs boson in the two Higgs doublets model. We study the parameter space of the model consistent with the Higgs data, branching ratio of B̄ → X s γ as well as precision electroweak measurements. We also incorporate theoretical constraints - perturbativity of the couplings and vacuum stability, in our study. We find that only a small parameter space of the model remains viable. The phenomenology of the heavy Higgs bosons in the surviving parameter space is studied. © 2013 SISSA, Trieste, Italy.