104 citations
- Universidade Federal de LavrasBR12 papers
- Federal Center for Technological Education of Minas GeraisBR10 papers
- Universidade Federal da ParaíbaBR9 papers
- Universidade Federal do ParáBR5 papers
- Federal University of São João del-ReiBR3 papers
- Institute of Mathematics and PhysicsBJ3 papers
- Universidade Federal de Minas GeraisBR3 papers
- Universidade Federal do Espírito SantoBR3 papers
- L. N. Gumilyov Eurasian National UniversityKZ2 papers
- Universidade de BrasíliaBR2 papers
- Universidade de São PauloBR2 papers
- Universidade Estadual de Ponta GrossaBR2 papers
33 papers
Ambiguities in the generation of CFJ-terms in a QED with dimension-5 operators in one loop
H. G. Fargnoli, J. C. C. Felipe, G. Gazzola
In this paper, we investigate a Lorentz symmetry breaking extension of Quantum Electrodynamics (QED), incorporating 5-dimensional CPT-odd terms at the one-loop level. Employing an…
Two-loop renormalization of the CPT-even Lorentz-violating Scalar QED
L. C. T. Brito, J. C. C. Felipe, A. C. Lehum +1
Investigating quantum effects arising from high loops in perturbation theory is crucial for the physical applications of any quantum field theory. This paper presents a comprehensi…
Perturbative Aspects of CPT-Even Lorentz-Violating Scalar Chromodynamics
B. Altschul, L. C. T. Brito, J. C. C. Felipe +3
In this work, we formulate the theory of Lorentz-violating scalar Quantum Chromodynamics with an arbitrary non-Abelian gauge group. This theory belongs to the class of models encom…
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…
The full Lorentz-violating vacuum polarization tensor: low and high energy limits
J. C. C. Felipe, A. Yu. Petrov, A. P. Baêta Scarpelli +1
We compute the full vacuum polarization tensor in the fermion sector of Lorentz-violating QED. Even if we assume momentum routing invariance of the Feynman diagrams, it is not poss…
Calculations in Lorentz-breaking scalar QED
Jean C. C. Felipe, A. Yu Petrov, A. P. B. Scarpelli +1
We purpose a study a Lorentz-breaking extension of the scalar QED. We calculate the contributions in the Lorentz-violating parameters to the two-point functions of scalar and gauge…