5 papers
Extending the Euler-Heisenberg action to include effects of local Lorentz-symmetry violating backgrounds
Wagno Cesar e Silva, João Paulo S. Melo, João Paulo S. Melo +2
This work sets out to compute the corrections to the Euler-Heisenberg effective action that arise from spacetime-dependent background anisotropies that violate Lorentz symmetry. To…
Experimental signatures of Kalb-Ramond-like particles
P. C. Malta, J. P. S. Melo, C. A. D. Zarro
We analyse phenomenological signatures of Kalb-Ramond-like particles, described by an antisymmetric rank-2 tensor, when coupled to fermionic matter. The latter is modelled by a ten…
SUSY QED with Lorentz-asymmetric fermionic matter and a glance at the electron's EDM
João Paulo S. Melo, Wagno Cesar e Silva, José A. Helayël-Neto
This contribution sets out to pursue the investigation of a supersymmetric electrodynamics model with Lorentz-symmetry violation (LSV) manifested by a space-time unbalance in the p…
Loop Quantum Gravity effects on electromagnetic properties of charged leptons
João Paulo S. Melo, Mario J. Neves, Jefferson M. A. Paixão +1
The efforts in this contribution consist in reassessing a modified Dirac equation that incorporates a $γ^0 γ_5$-Lorentz-symmetry violating (LSV) term induced as a Loop Quantum Gr…
Re-assessing special aspects of Dirac fermions in presence of Lorentz-symmetry violation
João Paulo S. Melo, José A. Helayël-Neto
This paper focuses on additional inspections concerning the fermionic sector of the Standard Model Extension (SME). In this context, our main effort in this contribution is to inve…