9 citations · 12 across the 3 of their papers we have counts for
7 papers
On the nonlinear electrodynamics in a Lorentz-breaking scenario
E. Neres Júnior, J. C. C. Felipe, A. P. Baêta Scarpelli
In this work, we study a model in nonlinear electrodynamics in the presence of a CPT-even term that violates Lorentz symmetry. The Lorentz-breaking vector, in addition to the usual…
One-loop calculations in CPT-even Lorentz-breaking scalar QED
A. P. Baêta Scarpelli, J. C. C. Felipe, L. C. T. Brito +1
In this paper, we study a CPT-even Lorentz-breaking extension of the scalar QED. For this theory, we calculate the one-loop lower-order contributions in the Lorentz-violating param…
Residual gauge-invariance in a massive Lorentz-violating extension of QED
B. Alves Marques, A. P. Baêta Scarpelli, J. C. C. Felipe +1
We reassess an alternative CPT-odd electrodynamics obtained from a Palatini-like procedure. Starting from a more general situation, we analyze the physical consistency of the model…
Effective potential in Lorentz-breaking field theory models
A. P. Baeta Scarpelli, L. C. T. Brito, J. C. C. Felipe +2
We calculate explicitly the one-loop effective potential in different Lorentz-breaking field theory models. First, we consider a Yukawa-like theory and, then, some examples of Lore…
Tree-level equivalence between a Lorentz-violating extension of QED and its dual model in electron-electron scattering
Giuliano R. Toniolo, H. G. Fargnoli, L. C. T. Brito +1
S-matrix amplitudes for the electron-electron scattering are calculated in order to verify the quantum equivalence of dual models. We used an extended Quantum Electrodynamics with…
Remarks on a Lorentz-breaking 4D chiral gauge theory
A. P. Baêta Scarpelli, M. Gomes, A. Yu. Petrov +1
We investigate a Lorentz-violating chiral model composed by two fermions, a complex scalar field and a gauge field. We show that by convenientely adjusting the parameters of the mo…