Abstract
In comparison with calculations, the excess of multimuon events found in many experiments at ultrahigh energies of extensive air showers (EASs) cannot be explained using modern models of hadron interactions. The existence of muon excess is called the muon puzzle. One of the ways to solve this problem is to study the energy characteristics of the EAS muon component. For this purpose, the energy deposit of cosmic ray muon bundles is measured in the NEVOD–DECOR experiment. Registration of muon bundles in a wide range of zenith angles allows one to explore a wide range of energies of the primary particles of cosmic rays (from 10 to 1000 PeV) within a single experiment. The results of measurements of the energy deposit of muon bundles over a long observation period are presented.
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ACKNOWLEDGMENTS
This study was performed using a unique scientific facility (the NEVOD experimental complex). Simulation was carried out using resources of the MEPhI high-performance computing facility.
Funding
This study was supported by the Ministry of Science and Higher Education of the Russian Federation (MEPhI Academic Excellence Project no. 02.a03.21.0005) and by the Russian Foundation for Basic Research, project no. 18-02-00971-a.
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Translated by I. Obrezanova
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Yurina, E.A., Barbashina, N.S., Bogdanov, A.G. et al. NEVOD–DECOR Experiment on the Measurement of the Energy Deposit of Cosmic Ray Muon Bundles. Phys. Atom. Nuclei 83, 1369–1374 (2020). https://doi.org/10.1134/S1063778820090306
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DOI: https://doi.org/10.1134/S1063778820090306