On the electromagnetic emission from charged test particles in a five dimensional spacetime

TL;DR

This paper investigates the electromagnetic radiation emitted by charged particles falling radially in five-dimensional Kaluza-Klein spacetimes, highlighting new spectral features compared to four-dimensional Schwarzschild backgrounds.

Contribution

It introduces a novel analysis of charged particle dynamics and electromagnetic emission in five-dimensional Kaluza-Klein backgrounds, extending previous four-dimensional studies.

Findings

Identification of unique spectral features in five dimensions

Comparison showing differences from four-dimensional Schwarzschild case

Insights into electromagnetic radiation in higher-dimensional spacetimes

Abstract

We study the motion of charged particles radially falling in a class of static and electromagnetic-free, five-dimensional Kaluza-Klein backgrounds. Particle dynamics in such spacetimes is explored by an approach \emph{a l$\acute{a}$} Papapetrou. The electromagnetic radiation emitted by these particles is studied, outlining the new features emerging in the spectra for the five-dimensional case. A comparison with the dynamics in the four dimensional counterpart, \textit{i.e} the Schwarzschild background, is performed.