Estimation of the Composition of Ultra-High Energy Cosmic Rays Using the Muon Correlation Method Based on Yakutsk EAS Array Data

2024/09/01 by A. V. Glushkov, L. T. Ksenofontov, Л. Т. Ксенофонтов +4
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies

paper · doi:10.1134/s002136402460188x

Abstract

In this article a new method is proposed for estimating the mass composition of cosmic rays in individual events with energies above 1.25 × 10^19 eV. It is based on a joint analysis of experimental data and simulation results obtained using the QGSjet-II.04 model for muons with threshold energy E_μ = 1.0 × cos θ GeV in air showers with zenith angles up to 60°. The data from ground-based and underground scintillation detectors of the Yakutsk EAS array were used. Separate groups of nuclei and other primary particles were found.

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