PoS - Proceedings of Science
Volume 395 - 37th International Cosmic Ray Conference (ICRC2021) - CRI - Cosmic Ray Indirect
Air shower genealogy for muon production
M. Reininghaus*, R. Ulrich and T. Pierog
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Pre-published on: July 06, 2021
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Measurements of the muon content of extensive air showers at the highest energies show discrepancies compared to simulations as large as the differences between proton and iron. This so-called muon puzzle is commonly attributed to a lack of understanding of the hadronic interactions in the shower development. Furthermore, measurements of the fluctuations of muon numbers suggest that the discrepancy is likely a cumulative effect of interactions of all energies in the cascade. A feature of the air shower simulation code CORSIKA 8 allows us to access all previous generations of final-state muons up to the first interaction. With this technique, we study
the influence of interactions happening at any intermediate stage in the cascade on muons depending on their lateral distance
in a quantitative way and compare our results with predictions of the Heitler-Matthews model.
DOI: https://doi.org/10.22323/1.395.0463
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