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Acoplamento de férmions com o campo gravitacional e aplicação na cosmologiaCoupling of fermions with the field gravitation and application in cosmology
(Universidade Federal de LavrasPrograma de Pós-Graduação em FísicaUFLAbrasilDepartamento de Física, 2018)
Fermionic origin of dark energy in the inflationary universe from unified spinor fields
(IOP Publishing, 2020-02)
In this work we explore the boundary conditions in the Einstein-Hilbert action, by considering a displacement from the Riemannian manifold to an extended one. The latter is characterized by including spinor fields into the ...
Novel constraints on fermionic dark matter from galactic observables I: The Milky Way
(Elsevier, 2018-09)
We have recently introduced a new model for the distribution of dark matter (DM) in galaxies based on a self-gravitating system of massive fermions at finite temperatures, the Ruffini–Argü elles–Rueda (RAR) model. We show ...
Creation of mass dimension one fermionic particles in asymptotically expanding universe
(2017-10-01)
In the present work we study the process of particle creation for mass dimension one fermionic fields (sometimes named Elko) as a consequence of expansion of the universe. We study the effect driven by an expanding background ...
From inflation to recent cosmic acceleration: The fermionic Elko field driving the evolution of the universe
(2017-09-27)
In this paper we construct the complete evolution of the universe driven by the mass dimension one dark spinor called Elko, starting with inflation, passing by the matter dominated era and finishing with the recent accelerated ...
Fermionic wave functions and Grassmann fields as possible sources of dark energy
(Springer, 2022-09-16)
We study a cosmological model with a fermionic field which can be interpreted as a source of dark energy in the universe. Two different approaches were considered, the first one with a massless fermionic field represented ...
Novel constraints on fermionic dark matter from galactic observables II: Galaxy scaling relations
(Elsevier Science, 2019-03)
We have recently introduced in paper I an extension of the Ruffini–Argüelles–Rueda(RAR) model for the distribution of DM in galaxies, by including for escape of particle effects. Being built upon self-gravitating fermions ...
Fermion masses and mixings and dark matter constraints in a model with radiative seesaw mechanism
(2018)
We formulate a predictive model of fermion masses and mixings based on a Delta(27) family symmetry. In the quark sector the model leads to the viable mixing inspired texture where the Cabibbo angle comes from the down quark ...