Consequences of a Heavy-Metal Scenario for Ultra-High-Energy Cosmic Rays

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00636096" target="_blank" >RIV/68378271:_____/25:00636096 - isvavai.cz</a>
Result on the web
<a href="https://pos.sissa.it/484/123/pdf" target="_blank" >https://pos.sissa.it/484/123/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.484.0123" target="_blank" >10.22323/1.484.0123</a>

Result language
angličtina
Original language name
Consequences of a Heavy-Metal Scenario for Ultra-High-Energy Cosmic Rays
Original language description
We assume an extreme scenario, in which the arriving cosmic rays are composed of only iron nuclei at energies above 10^19.6 eV 40 EeV, while allowing a freedom in the scale of the depth of shower maximum (Xmax) and preserving the elongation rate and fluctuations of Xmax predicted by models of hadronic interactions. We derive the shift of the Xmax scale for QGSJet II-04 and Sibyll 2.3d models using the public data from the Pierre Auger Observatory. We then propose a new mass-composition model for the energy evolution of four primary species at the ultra-high energies by fitting the publicly-available Xmax distributions. We discuss the consequences of this Heavy-metal scenario on the energy spectrum of individual primary species, hadronic interaction studies, and the effect of the Galactic magnetic field on the arrival directions.
Czech name
—
Czech description
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)