Photon emission by an electron in a constant background field modeling a Lorentz-noninvariant vacuum

TL;DR

This paper calculates the electromagnetic radiation emitted by an electron in a Lorentz-noninvariant vacuum background, analyzing its angular distribution and polarization, and discusses potential astrophysical observability under current experimental constraints.

Contribution

It introduces a model for photon emission by electrons in a Lorentz-violating background, providing new theoretical predictions for radiation characteristics and potential astrophysical implications.

Findings

Radiation power and probability are derived for Lorentz-violating backgrounds.

Angular distribution and polarization of emitted photons are characterized.

Effects may be observable at ultrahigh energies in astrophysical environments.

Abstract

The power and the probability of electromagnetic radiation from an electron in a constant background tensor field violating Lorentz invariance are calculated. The case of a background field of the quasielectric type is considered. The angular distribution and the polarization of the radiation are studied. Using present experimental constraints on the background field strength, it is shown that the radiation effect can manifest itself under astrophysical conditions at ultrahigh electron energy.