No muon excess in extensive air showers at 100-500 PeV primary energy: EAS-MSU results

No muon excess in extensive air showers at 100-500 PeV primary energy: EAS-MSU results

Some discrepancies have been reported between observed and simulated muon content of extensive air showers: the number of observed muons exceeded the expectations in HiRes-MIA, Yakutsk and Pierre Auger Observatory data. Here, we analyze the data of the Moscow State University Extensive Air Shower (E...

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Veröffentlicht in:arXiv.org 2017-04
Hauptverfasser: Fomin, Yu A, Kalmykov, N N, Karpikov, I S, Kulikov, G V, M Yu Kuznetsov, Rubtsov, G I, Sulakov, V P, Troitsky, S V
Format: Artikel
Sprache:eng
Schlagworte:
Augers
Computer simulation
Cosmic ray showers
Interaction models
Muons
Physics - High Energy Astrophysical Phenomena
Surface detectors
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Zusammenfassung:Some discrepancies have been reported between observed and simulated muon content of extensive air showers: the number of observed muons exceeded the expectations in HiRes-MIA, Yakutsk and Pierre Auger Observatory data. Here, we analyze the data of the Moscow State University Extensive Air Shower (EAS-MSU) array on E_mu>~10 GeV muons in showers caused by ~(10^17-10^18) eV primary particles and demonstrate that they agree with simulations (QGSJET-II-04 hadronic interaction model) once the primary composition inferred from the surface-detector data is assumed.
ISSN:2331-8422
DOI:10.48550/arxiv.1609.05764