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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Bibliographic Details
Main Authors: Fomin, Yu. A., Kalmykov, N. N., Karpikov, I. S., Kulikov, G. V., Kuznetsov, M. Yu., Rubtsov, G. I., Sulakov, V. P., Troitsky, S. V.
Format: Text
Language:unknown
Published: arXiv 2016
Subjects:
High Energy Astrophysical Phenomena astro-ph.HE
FOS Physical sciences
Yakutsk
Online Access:https://dx.doi.org/10.48550/arxiv.1609.05764
https://arxiv.org/abs/1609.05764
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Summary: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. : 10 pages, 6 figures, elsart.sty. V2: extended discussion of systematic errors, numerous clarifications (results unchanged). V3: minor changes, version accepted by Astroparticle Physics

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