Muons in EAS with E>=10¹7eV according to the data from Yakutsk array

2013/10/02 by A. V. Glushkov, А. В. Глушков, Glushkov, A. V. +2 · 1 citation
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #astro-ph.HE

paper · pdf · doi:10.48550/arxiv.1310.0561

12 pages, 7 figures

openalex publication_date 2013/10/02 · arxiv created 2013/10/03 · arxiv updated 2013/10/07 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The lateral distribution of muons with threshold energy e ~ 1*sec(theta) GeV have been studied in showers with energy E>=10¹7 eV. The data considered in the analysis have been collected from November 2011 to June 2013. Experimental values are compared to predictions obtained with the use of CORSIKA code within the framework of various hadron interaction models. The best agreement between experiment and theory is observed for QGSJETII-04 model. At E~10¹7 eV it complies to a mixed cosmic ray composition with the mean atomic number <lnA>~3.0+/-0.5. At E>= 4*10¹7 eV the composition varies around the value <lnA>~0.5.

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• Variations of the cosmic ray composition at energy above 0.1 EeV as observed by muon detectors of Yakutsk array

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