Spectra of Astrophysical Particles at Ultra High Energy and the Auger Data

TL;DR

This paper models the propagation of ultra high energy cosmic rays using a kinetic-equation approach and compares the theoretical predictions with observational data from the Pierre Auger Observatory.

Contribution

It introduces a kinetic-equation method to analyze cosmic ray propagation and provides a comparison with real observational data.

Findings

Good agreement between model and Auger data

Insights into cosmic ray composition at ultra high energies

Constraints on source models for cosmic rays

Abstract

We use a kinetic-equation approach to describe the propagation of ultra high energy cosmic ray protons and nuclei comparing theoretical results with the observations of the Pierre Auger Observatory.