44 citations · 123 across the 10 of their papers we have counts for
8 papers · 1 filter
Radiative Two-Loop Neutrino Masses with Dark Matter
C. Simoes, D. Wegman
Using the Weinberg operator, we present a full collection of genuine two-loop models for neutrino mass generation, which contain a dark matter particle as one of the internal messe…
Radiative accidental matter
D. Aristizabal Sierra, C. Simoes, D. Wegman
Accidental matter models are scenarios where the beyond-the-standard model physics preserves all the standard model accidental and approximate symmetries up to a cutoff scale relat…
Closing in on minimal dark matter and radiative neutrino masses
D. Aristizabal Sierra, C. Simoes, D. Wegman
We study one-loop radiative neutrino mass models in which one of the beyond-the-standard model fields is either a hypercharge-zero fermion quintet (minimal dark matter) or a hyperc…
SOSpin, a C++ library for Yukawa decomposition in SO(2N) models
Nuno Cardoso, David Emmanuel-Costa, Nuno Gonçalves +1
We present in this paper the SOSpin library, which calculates an analytic decomposition of the Yukawa interactions invariant under any SO(2N) group in terms of an SU(N) basis. We m…
The minimal adjoint-SU(5)xZ_4 GUT model
D. Emmanuel-Costa, C. Simoes, M. Tortola
An extension of the adjoint SU(5) model with a flavour symmetry based on the Z_4 group is investigated. The Z_4 symmetry is introduced with the aim of leading the up- and down-quar…
Nearest-Neighbour-Interactions from a minimal discrete flavour symmetry within SU(5) Grand Unification
D. Emmanuel-Costa, C. Simoes
A flavour symmetry based on Z_4 is analysed in the context of SU(5) Grand Unification with the standard fermionic content plus three right-handed neutrinos. The role of Z_4 is to f…
Nearest-Neighbour Interaction from an Abelian Symmetry and Deviations from Hermiticity
G. C. Branco, D. Emmanuel-Costa, C. Simoes
We show that Nearest-Neighbour Interaction (NNI) textures for the quark mass matrices can be obtained through the introduction of an Abelian flavour symmetry. The minimal realisati…
Reconstruction of Quark Mass Matrices with Weak Basis Texture Zeroes from Experimental Input
D. Emmanuel-Costa, C. Simoes
All quark mass matrices with texture zeroes obtained through weak basis transformations are confronted with the experimental data. The reconstruction of the quark mass matrices M_u…