Fitting the two-loop renormalized Two-Higgs-Doublet model

Abstract

We present global fits to the Two-Higgs-Doublet model, assuming a softly broken $Z_2$ symmetry of the types I and II and CP conservation in the scalar potential. We show how much the parameter space is constrained by the combination of the relevant theoretical and experimental inputs, including the LHC data after the first run and interpreting the 125 GeV boson as the light CP even Higgs. Using the next-to-leading order renormalization group equations, we address the questions of vacuum stability and the hierarchy problem in the context of the mentioned Two-Higgs-Doublet models.

Comments: Contribution to the proceedings of the 18th International Conference 'From the Planck Scale to the Electroweak Scale', 25-29 May 2015, Ioannina, Greece