2.6k citations · 3.3k across the 21 of their papers we have counts for
21 papers
Vacuum Instabilities in the N2HDM
P. M. Ferreira, Margarete Mühlleitner, Rui Santos +2
The Higgs sector of the Next-to-Minimal Two-Higgs-Doublet Model (N2HDM) is obtained from the Two-Higgs-Doublet Model (2HDM) containing two complex Higgs doublets, by adding a real…
CP4 miracle: shaping Yukawa sector with CP symmetry of order four
P. M. Ferreira, Igor P. Ivanov, Enrique Jiménez +2
We explore the phenomenology of a unique three-Higgs-doublet model based on the single CP symmetry of order 4 (CP4) without any accidental symmetries. The CP4 symmetry is imposed o…
The Wrong Sign limit in the 2HDM
P. M. Ferreira, Renato Guedes, John F. Gunion +3
A sign change in the Higgs couplings to fermions and massive gauge bosons is still allowed in the framework of two-Higgs doublet models (2HDM). In this work we discuss the possible…
Tree-level metastability bounds in two-Higgs doublet models
A. Barroso, P. M. Ferreira, I. Ivanov +1
The two Higgs doublet model has a rich vacuum structure, including the possibility of existence of two Standard Model-like minima at tree-level. It is therefore possible that the u…
Probing the scalar-pseudoscalar mixing in the 125 GeV Higgs particle with current data
A. Barroso, P. M. Ferreira, Rui Santos +1
LHC has found hints for a Higgs particle of 125 GeV. We investigate the possibility that such a particle is a mixture of scalar and pseudoscalar states. For definiteness, we concen…
Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models?
P. M. Ferreira, Rui Santos, Marc Sher +1
LHC has reported tantalizing hints for a Higgs boson of mass 125 GeV decaying into two photons. We focus on two-Higgs-doublet Models, and study the interesting possibility that the…