K. E. L. de Farias

The Lorentz-violating effects in charged particle systems

We investigate the relativistic dynamics of a spin-1/2 particle in the presence of a Lorentz-violating background within the framework of effective field theory. We consider a modified Dirac Hamiltonian resulting from a CPT-odd coupling involving the Lorentz-violating gauge tenso...

Neutrino oscillations in a Kalb–Ramond black hole background

Abstract The analysis examines how neutrinos behave when their trajectories unfold around a black hole sourced by a Kalb–Ramond field, where spontaneous Lorentz symmetry-breaking reshapes the surrounding geometry. Instead of following the conventional order, the study focuses fir...