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Muon excess in ultra-high energy inclined EAS according to the NEVOD-DECOR data

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dc.contributor.authorKindin, V. V.
dc.contributor.authorKompaniets, K. G.
dc.contributor.authorMannocchi, G.
dc.contributor.authorShutenko, V. V.
dc.contributor.authorTrinchero, G.
dc.contributor.authorYurina, E. A.
dc.contributor.authorЯшин, Игорь Иванович
dc.contributor.authorЗадеба, Егор Александрович
dc.contributor.authorПетрухин, Анатолий Афанасьевич
dc.contributor.authorХохлов, Семен Сергеевич
dc.contributor.authorКокоулин, Ростислав Павлович
dc.contributor.authorБогданов, Алексей Георгиевич
dc.contributor.authorБарбашина, Наталья Сергеевна
dc.contributor.authorBarbashina, N. S.
dc.contributor.authorBogdanov, A. G.
dc.contributor.authorKhokhlov, S. S.
dc.contributor.authorPetrukhin, A. A.
dc.contributor.authorYashin, I. I.
dc.contributor.authorZadeba, E. A.
dc.contributor.authorKokoulin, R. P.
dc.contributor.authorКиндин, Виктор Владимирович
dc.contributor.authorКомпаниец, Константин Георгиевич
dc.contributor.authorШутенко, Виктор Викторович
dc.date.accessioned2023-09-22T05:57:23Z
dc.date.available2023-09-22T05:57:23Z
dc.date.issued2021
dc.description.abstractData of the NEVOD-DECOR experiment on investigations of inclined cosmic ray muon bundles for a long time period (May 2012 – March 2021) are presented. Their comparison with the results of calculations based on simulations of EAS muon component allows one to study the behavior of the energy spectrum and mass composition of primary cosmic rays and/or to check the validity of hadron interaction models in a wide energy range from about 1016 to more than 1018 eV. The analysis showed that the observed intensity of muon bundles at primary particle energies of about 1018 eV and higher can be compatible with the expectation only under the assumption of an extremely heavy mass composition of cosmic rays. This conclusion is consistent with data of a number of other experiments investigating the muon component of air showers at ultra-high energies. On the contrary, measurements of the depth of the shower maximum in the atmosphere (Xmax) in the experiments using air fluorescence technique favor a light mass composition of primary cosmic rays at these energies. This contradiction (so-called “muon puzzle”) cannot be resolved without serious changes of the existing hadron interaction models.
dc.identifier.citationKokoulin,R.P. Muon excess in ultra-high energy inclined EAS according to the NEVOD-DECOR data / Kokoulin,R.P. [at al.] // Proceedings of Science. - 2022. - 395.- 10.22323/1.395.0381
dc.identifier.doi10.22323/1.395.0381
dc.identifier.urihttps://openrepository.mephi.ru/handle/123456789/260
dc.identifier.urihttps://pos.sissa.it/395/381
dc.publisher37th International Cosmic Ray Conference (ICRC 2021) July 12th – 23rd, 2021
dc.titleMuon excess in ultra-high energy inclined EAS according to the NEVOD-DECOR data
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