Using a geometric description of 2HDM, the CP-odd invariants are classified into three
independent sectors: scalar potential, Yukawa interaction, and CKM matrix. We calculate the …

We extend the framework of analyzing the 2HDM in its orbit space to study the one-loop
effective potential before and after electroweak symmetry breaking. In this framework, we …

We present a comprehensive analysis of the vacuum stability of the two-Higgs-doublet
model, for both type-I and type-II, augmented by vectorlike quarks in singlet, doublet, or …

A bstract We analyse the possibility of charge breaking minima developing in the Higgs
triplet model, and under what conditions they are deeper than charge-preserving ones …

It is well known that the scotogenic model for neutrino mass generation can explain correctly
the relic abundance of cold dark matter. There have been claims in the literature that an …

In this article we study the possibility that neutral and charged scalars lighter than the 125
GeV Higgs boson might exist within the framework of the $\mathcal {CP} $-conserving …

The Γ-function, or the effective potential of a gauge field theory should comply with the
Nielsen identity, which implies how the effective potential evolves as we shift the gauge …