L. Evangelista

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gr-qc2026

Newtonian Potential in Weyl Gravitoelectromagnetism

L. A. S. Evangelista, A. F. Santos

The gauge structure of the Weyl Gravitoelectromagnetic (GEM) formalism has been investigated, showing that although the theory admits additional propagating modes, only an effectiv…

gr-qc2026

Diffeomorphism-Like Symmetry in Gravitoelectromagnetism

L. A. S. Evangelista, A. F. Santos

Gravitoelectromagnetism in the Weyl formalism is investigated through an analysis of the consequences of a restricted gauge symmetry acting on the tensor field $A_{μν}$ . The propag…

gr-qc2026

Causality and its violation in $f (R, L_{m}, ϕ, g^{μν} \nabla_{μ} ϕ \nabla_{ν} ϕ)$ gravity

L. A. S. Evangelista, M. L. R. Silva, J. V. Moretti +1

A modified gravitational model whose action is given by an arbitrary function of the Ricci scalar, the matter Lagrangian density, a scalar field, and its kinetic term is investigat…

gr-qc2026

Gravitational Lorentz-violating $e^{-} + e^{+} \to ℓ^{-} + ℓ^{+}$ scattering

L. A. S. Evangelista, A. F. Santos

We investigate the gravitational $e^{-} + e^{+} \to ℓ^{-} + ℓ^{+}$ scattering process within the framework of gravitoelectromagnetism, a weak-field approximation of gravity analogous to Ma…

Newtonian Potential in Weyl Gravitoelectromagnetism

Diffeomorphism-Like Symmetry in Gravitoelectromagnetism

Causality and its violation in f(R,Lm​,ϕ,gμν∇μ​ϕ∇ν​ϕ) gravity

Gravitational Lorentz-violating e−+e+→ℓ−+ℓ+ scattering

Causality and its violation in $f (R, L_{m}, ϕ, g^{μν} \nabla_{μ} ϕ \nabla_{ν} ϕ)$ gravity

Gravitational Lorentz-violating $e^{-} + e^{+} \to ℓ^{-} + ℓ^{+}$ scattering