143 citations · 276 across the 13 of their papers we have counts for
13 papers
Shining massive light through a wall
P. C. Malta
A massive photon possesses a longitudinal polarization mode absent in its massless counterpart. Transverse and longitudinal modes follow different dispersion relations, the latter…
Constraining the photon mass via Schumann resonances
P. C. Malta, J. A. Helayël-Neto
The photon is the paradigm for a massless particle and current experimental tests set severe upper bounds on its mass. Probing such a small mass, or equivalently large Compton wave…
Phenomenology of a Born-Infeld extension of the sector at lepton colliders
P. De Fabritiis, P. C. Malta, J. A. Helayël-Neto
In this work we perform a non-linear extension of the sector of the Standard Model leading to novel quartic effective interactions between the neutral gauge bosons.…
Lorentz-symmetry violation in the electroweak sector: scattering processes in future colliders
P. De Fabritiis, P. C. Malta, M. J. Neves
We study CPT-odd non-minimal Lorentz-symmetry violating couplings in the electroweak sector modifying the interactions between leptons, gauge mediators and the Higgs boson. The tre…
A novel test of Lorentz violation in the photon sector with an LC circuit
P. C. Malta
In the presence of an external magnetic field, the Carroll-Field-Jackiw term introduces a displacement current proportional to the Lorentz-violating background that induces a time-…
Testing Lorentz-symmetry violation via electroweak decays
Y. M. P. Gomes, P. C. Malta, M. J. Neves
In this work we introduce CPT-odd non-minimal Lorentz-symmetry violating couplings to the electroweak sector modifying the interaction between leptons and gauge bosons. The vertex…
Decay photons from the ALP burst of type-II supernovae
J. Jaeckel, P. C. Malta, J. Redondo
We determine limits from SN 1987A on massive axion-like particles (ALPs) with masses in the 10 keV - 100 MeV range and purely coupled to two photons. ALPs produced in the core coll…
Spin- and velocity-dependent non-relativistic potentials in modified electrodynamics
G. P. de Brito, P. C. Malta, L. P. R. Ospedal
We investigate the interparticle potential between spin-0, -1/2 and -1 sources interacting in modified electrodynamics in the non-relativistic regime. By keeping terms of $\mathcal…
Lorentz violation in simple QED processes
G. P. de Brito, J. T. Guaitolini Junior, D. Kroff +2
We determine the effect of a CPT-even and Lorentz violating non-minimal coupling on the differential cross sections for some of the most important tree-level processes in QED, name…
Lab-based limits on the Carroll-Field-Jackiw Lorentz-violating electrodynamics
Y. M. P. Gomes, P. C. Malta
The CPT-odd and Lorentz-violating Carroll-Field-Jackiw modification of electrodynamics is discussed and we study its effects on the energy spectrum of hydrogen, as well as in the g…
Comparative aspects of spin-dependent interaction potentials for spin-1/2 and spin-1 matter fields
P. C. Malta, L. P. R. Ospedal, K. Veiga +1
This paper sets out to establish a comparative study between classes of spin- and velocity-dependent potentials for spin-1/2 and spin-1 matter currents/sources in the non-relativis…
Topologically Massive Spin-1 Particles and Spin-Dependent Potentials
F. A. Gomes Ferreira, P. C. Malta, L. P. R. Ospedal +1
We investigate the role played by particular field representations of an intermediate massive spin-1 boson in the context of spin-dependent interparticle potentials between fermion…
Mirror matter, inverse seesaw neutrino masses and the Higgs mass spectrum
M. M. Candido, Y. A. Coutinho, P. C. Malta +2
In this work we study a mirror model with inverse seesaw neutrino masses in which symmetry breaking scales are fixed from bounds in the neutrino sector. The Higgs sector of the mod…