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

被引：0

作者：

Kokoulin, R. P. ^{[1
]}

Barbashina, N. S. ^{[1
]}

Bogdanov, A. G. ^{[1
]}

Khokhlov, S. S. ^{[1
]}

Kindin, V. V. ^{[1
]}

Kompaniets, K. G. ^{[1
]}

Mannocchi, G. ^{[2
]}

Petrukhin, A. A. ^{[1
]}

Shutenko, V. V. ^{[1
]}

Trinchero, G. ^{[2
]}

Yashin, I. I. ^{[1
]}

Yurina, E. A. ^{[1
]}

Zadeba, E. A. ^{[1
]}

机构：

[1] Natl Res Nucl Univ, MEPhI Moscow Engn Phys Inst, Moscow 115409, Russia

[2] Osservatorio Astrofis Torino INAF, I-10025 Turin, Italy

来源：

37TH INTERNATIONAL COSMIC RAY CONFERENCE, ICRC2021 | 2022年

关键词：

COSMIC-RAYS; DETECTOR;

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Data 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 10(16) to more than 10(18) eV. The analysis showed that the observed intensity of muon bundles at primary particle energies of about 10(18) 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 ( X-max) 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.

引用

页数：8

共 50 条

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Kindin, V. V.
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[2] Average Muon Energies in Inclined Bundles, According to NEVOD-DECOR Data
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[3] Investigation of the energy characteristics of EAS muon component with the NEVOD-DECOR setup
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[4] Measurements of the average muon energy in inclined muon bundles in the NEVOD-DECOR experiment
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[5] Measuring the energy deposited by muon bundles of inclined EAS in the NEVOD–DECOR experiment
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[8] Observation of high-energy cosmic rays by very inclined muon bundles in the NEVOD-DECOR experiment
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[10] ULTRA-HIGH ENERGY PRIMARY COSMIC-RAYS ACCORDING TO THE MSU EAS ARRAY DATA
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