Searching for Kaluza-Klein Dark Matter Signatures in the LAT Electron Flux

TL;DR

This paper explores the potential of the LAT telescope to detect signals of Kaluza-Klein dark matter particles through high-energy electron flux measurements, analyzing detection capabilities and propagation effects.

Contribution

It assesses the LAT's sensitivity to Kaluza-Klein dark matter signatures in high-energy electrons, considering various particle masses and electron propagation models.

Findings

LAT can detect high-energy electrons from Kaluza-Klein dark matter annihilation

Sensitivity varies with particle mass and propagation assumptions

Potential to identify dark matter signatures in cosmic ray electron flux

Abstract

We present here the prospects for the GLAST Large Area Telescope (LAT) detection of the signature of the lightest Kaluza-Klein particle (LKP). It decays by direct annihilation into electron-positron pairs that may be detectable in the high energy electron flux. We discuss the LAT capability for detecting the high energy (20 GeV - ~1 TeV) cosmic ray electron flux and we analyze the LAT sensitivity to detect LKP-produced electrons for various particle masses. We include an analysis of the diffusive propagation of the electrons in the galaxy.