65 citations · 280 across the 10 of their papers we have counts for
7 papers
Stability of neutral minima against charge breaking in the Higgs triplet model
P. M. Ferreira, B. L. Gonçalves
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. Analytical expres…
Electroweak vacuum lifetime in two Higgs doublet models
V. Branchina, F. Contino, P. M. Ferreira
We study the stability of neutral electroweak vacua in two Higgs doublet models, and calculate the lifetime of these states when the parameters are such that they are false vacua.…
The vacuum structure of the Higgs complex singlet-doublet model
P. M. Ferreira
The complex singlet-doublet model is a popular theory to account for dark matter and electroweak baryogenesis, wherein the Standard Model particle content is supplemented by a comp…
One-loop contributions to neutral minima in the inert doublet model
P. M. Ferreira, Bogumila Swiezewska
The vacuum structure of the inert doublet model is analysed at the one-loop level using the effective potential formalism, to verify the validity of tree-level predictions for the…
New textures for the lepton mass matrices
P. M. Ferreira, L. Lavoura
We study predictive textures for the lepton mass matrices in which the charged-lepton mass matrix has either four or five zero matrix elements while the neutrino Majorana mass matr…
Seesaw neutrino masses from an model with two equal vacuum expectation values
P. M. Ferreira, L. Lavoura
We present a model for the lepton sector, with horizontal-symmetry group, in which two of the Higgs doublets in an triplet of Higgs doublets have equal vacuum expectati…
Geometric picture of generalized-CP and Higgs-family transformations in the two-Higgs-doublet model
P. M. Ferreira, Howard E. Haber, M. Maniatis +2
In the two-Higgs-doublet model (THDM), generalized-CP transformations (phi_i--> X_{ij} phi_j^* where X is unitary) and unitary Higgs-family transformations (phi_i--> U_{ij} phi_j)…