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Strong lensing by fermionic dark matter in galaxies
(American Physical Society, 2016-12)
It has been shown that a self-gravitating system of massive keV fermions in thermodynamic equilibrium correctly describes the dark matter (DM) distribution in galactic halos (from dwarf to spiral and elliptical galaxies) ...
Galactic center constraints on self-interacting sterile neutrinos from fermionic dark matter (“ino”) models
(Elsevier Science, 2020-12)
The neutrino minimal standard model (νMSM) has been tightly constrained in the recent years, either from dark matter (DM) production or from X-ray and small-scale observations. However, current bounds on sterile neutrino ...
Long-lived colored scalars at the LHC
(Springer, 2016-03)
We study the collider signatures of a long-lived massive colored scalar transforming trivially under the weak interaction and decaying within the inner sections of a detector such as ATLAS or CMS. In our study, we assume ...
Secluded and putative flipped dark matter and Stueckelberg extensions of the standard model
(Iop Publishing Ltd, 2018-02-01)
We consider here three dark matter models with the gauge symmetry of the standard model plus an additional local U(1)(D) factor. One model is truly secluded and the other two models begin flipped, but end up secluded. All ...
A variant of 3-3-1 model for the generation of the SM fermion mass and mixing pattern
(2018)
We propose an extension of the 3-3-1 model with an additional symmetry group Z(2) x Z(4) x U(1)(Lg) and an extended scalar sector. To our best knowledge this is the first example of a renormalizable 3-3-1 model, which ...
Mass-dimension-one fermions and their gravitational interaction
(2019-01-01)
We investigate in detail the interaction between the spin-(1/2) field endowed with mass dimension one and the graviton. We obtain an interaction vertex that combines the characteristics of scalar-graviton and Dirac's ...
A framework to a mass-dimension-one fermionic sigma model
(Epl Association, European Physical Society, 2016-03-01)
In this paper a mass-dimension-one fermionic sigma model, realized by the eigen-spinors of the charge conjugation operator with dual helicity (Elko spinors), is developed. Such spinors are chosen as a specific realization ...
An unified cosmological evolution driven by a mass dimension one fermionic field
(2019-06-01)
An unified cosmological model for an Universe filled with a mass dimension one (MDO) fermionic field plus the standard matter fields is considered. After a primordial quantum fluctuation the field slowly rolls down to the ...
Chemical potential and the nature of dark energy: The case of a phantom field
(AMER PHYSICAL SOC, 2008)
The influence of a possible nonzero chemical potential mu on the nature of dark energy is investigated by assuming that the dark energy is a relativistic perfect simple fluid obeying the equation of state, p=omega rho ...