Ultra High Energy Cosmic Rays Propagation and Spectrum
Roberto Aloisio
TL;DR
This paper reviews recent observations of ultra-high-energy cosmic rays from HiRes and Auger, and introduces an analytical method to interpret their spectrum and composition, providing insights into their origins.
Contribution
It presents a comprehensive analytical computation scheme for UHECR spectrum prediction and interprets experimental results in terms of chemical composition and spectral features.
Findings
Consistent interpretation of HiRes and Auger data
Analytical model matches observed spectra
Insights into cosmic ray composition at ultra-high energies
Abstract
The status of the observations of Ultra High Energy Cosmic Rays will be reviewed, focusing on the the latest results of HiRes and Auger observatories. A comprehensive analytical computation scheme to compute the expected UHECR spectrum on earth will be presented, applying such scheme to interpret the experimental results. The phenomenological scenarios favored by HiRes and Auger in terms of chemical composition and spectrum will be also presented.
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