132 citations · 1.2k across the 45 of their papers we have counts for
4 papers · 1 filter
Vacuum Induced CP Violation Generating a Complex CKM Matrix with Controlled Scalar FCNC
Miguel Nebot, Francisco J. Botella, Gustavo C. Branco
We propose a viable minimal model with spontaneous CP violation in the framework of a Two Higgs Doublet Model. The model is based on a generalised Branco-Grimus-Lavoura model with…
Solving a Fine-Tuning Problem of the Standard Model through the Introduction of Vector-Like Quarks
F. J. Botella, G. C. Branco, M. Nebot +2
We emphasise that even in the extreme chiral limit where only the top and bottom quarks acquire mass, quark mixing is physically meaningful. This implies that the natural value of…
Symmetry Constrained Two Higgs Doublet Models
Joao M. Alves, Francisco J. Botella, Gustavo C. Branco +3
We study Two-Higgs-Doublet Models (2HDM) where Abelian symmetries have been introduced, leading to a drastic reduction in the number of free parameters in the 2HDM. Our analysis is…
Flavour Conservation in Two Higgs Doublet Models
Francisco J. Botella, Fernando Cornet-Gomez, Miguel Nebot
In extensions of the Standard Model with two Higgs doublets, flavour changing Yukawa couplings of the neutral scalars may be present at tree level. In this work we consider the mos…