15 citations · 60 across the 16 of their papers we have counts for
11 papers · 1 filter
Two-Component Dark Matter in the Type-I 2HDM
Patricio Escalona, Jacinto P. Neto, M. J. Neves +2
We investigate a two-component dark matter scenario in the type-I two-Higgs-doublet model. The dark sector contains a real scalar and a Dirac fermion , whose stability is en…
Updated Bounds on the Minimal Left-Right Symmetric Model from LHC Dilepton Resonance Searches
Gabriela Lichtenstein, Ricardo C. Silva, Mario J. Neves +1
The Left-Right model is a popular extension of the Standard Model that features three new neutral gauge bosons, and . Collider searches for a Left-Right symmetry a…
The axion-photon mixing in non-linear electrodynamic scenarios
J. M. A. Paixão, L. P. R. Ospedal, M. J. Neves +1
In this contribution, we re-assess some aspects of axionic electrodynamics by coupling non-linear electromagnetic effects to axion physics. We present a number of motivations to ju…
Lorentz-symmetry violation in the electroweak sector: scattering processes in future colliders
P. De Fabritiis, P. C. Malta, M. J. Neves
We study CPT-odd non-minimal Lorentz-symmetry violating couplings in the electroweak sector modifying the interactions between leptons, gauge mediators and the Higgs boson. The tre…
Majorana Fermion Dark Matter in Minimally Extended Left-Right Symmetric Model
M. J. Neves, Nobuchika Okada, Satomi Okada
We present a minimal extension of the left-right symmetric model based on the gauge group , in which…
The CP violation and scalar dark matter in a 331 model
M. J. Neves
The 331 model with right-handed neutrinos is re-assessed to investigate the CP violation in the quark sector. After the spontaneous symmetry breaking, the masses and physical field…
Testing Lorentz-symmetry violation via electroweak decays
Y. M. P. Gomes, P. C. Malta, M. J. Neves
In this work we introduce CPT-odd non-minimal Lorentz-symmetry violating couplings to the electroweak sector modifying the interaction between leptons and gauge bosons. The vertex…
A Dark Hidden-Sector of Dirac fermions at the GeV scale
M. J. Neves, J. A. Helaÿel-Neto
Our contribution sets out to investigate the GeV-scale phenomenology of a model based on an -gauge symmetry. The model accommodates, as a…
Minimally Extended Left-Right Symmetric Model for Dark Matter with U(1) Portal
M. J. Neves, J. A. Helaÿel-Neto, Rabindra N. Mohapatra +1
A minimal extension of the left-right symmetric model for neutrino masses that includes a vector-like singlet fermion dark matter (DM) is presented with the DM connected to the vis…
A -model and the magnetism of a dark fermion candidate
M. J. Neves, J. A. Helayël-Neto
Our contribution sets out to investigate the phenomenology of a gauge model based on an -symmetry group. The model can accommodate,…
A Unified Hidden-Sector-Electroweak Model, Paraphotons and the X-Boson
M. J. Neves, J. A. Helayël-Neto
Our contribution sets out to investigate the phenomenology of a gauge model based on an -symmetry group. The model can accommodate in…