180 citations · 2.9k across the 95 of their papers we have counts for
5 papers · 1 filter
Two-loop stability of a complex singlet extended Standard Model
Raul Costa, António P. Morais, Marco O. P. Sampaio +1
Motivated by the dark matter and the baryon asymmetry problems, we analyse a complex singlet extension of the Standard Model (SM) with a Z2 symmetry (which provides a dark matter c…
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…
Wrong sign and symmetric limits and non-decoupling in 2HDMs
P. M. Ferreira, Renato Guedes, Marco O. P. Sampaio +1
We analyse the possibility that, in two Higgs doublet models, one or more of the Higgs couplings to fermions or to gauge bosons change sign, relative to the respective Higgs Standa…
The CP-conserving 2HDM after the 8 TeV run
P. M. Ferreira, Renato Guedes, John F. Gunion +3
We confront the most common CP-conserving 2HDM with the LHC data analysed so far while taking into account all previously available experimental data. A special allowed corner of t…
Probing wrong-sign Yukawa couplings at the LHC and a future linear collider
P. M. Ferreira, John F. Gunion, Howard E. Haber +1
We consider the two-Higgs-doublet model as a framework in which to evaluate the viability of scenarios in which the sign of the coupling of the observed Higgs boson to down-type fe…