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Fermion localization and resonances on two-field thick branes
C. A. S. Almeida, M. M. Ferreira, A. R. Gomes +1
We consider -dimensional branes constructed with two scalar fields and coupled to a Dirac spinor field by means of a general Yukawa coupling. The equation of motion…
Stationary solutions for the parity-even sector of the CPT-even and Lorentz-covariance-violating term of the standard model extension
Rodolfo Casana, Manoel M. Ferreira, A. R. Gomes +1
In this work, we focus on some properties of the parity-even sector of the CPT-even electrodynamics of the standard model extension. We analyze how the six non-birefringent terms b…
Tensor gauge field localization in branes
M. O. Tahim, W. T. Cruz, C. A. S. Almeida
In this work we study localization of a Kalb-Ramond tensorial gauge field on a membrane described by real scalar fields. The membrane is embedded in an AdS-type five dimensional bu…
Braneworld Models of Scalar Fields with Generalized Dynamics
D. Bazeia, A. R. Gomes, L. Losano +1
This work deals with braneworld models driven by real scalar fields with nonstandard dynamics. We develop the first-order formalism for models with standard gravity but with the sc…
Lorentz violating effects on a quantized two-level system
M. M. Ferreira, A. R. Gomes
In this work, we consider the effects of the Lorentz-violating (LV) term belonging to the fermion sector of the extended standard model on the dynamics of a quantum…
Gravity localization on thick branes: a numerical approach
D. Bazeia, A. R. Gomes, L. Losano
We introduce a numerical procedure to investigate the spectrum of massive modes and its contribution for gravity localization on thick branes. After considering a model with an ana…