5-9 October 2020
Online
Europe/Moscow timezone
The conference is over. We would like to thank all participants for their attendance!

Mass composition estimation by relative content of muon in air showers with energy greater than 5 EeV

5 Oct 2020, 19:45
15m
Poster Server (Discord)

Poster Server

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Poster Astroparticle physics Poster session

Speaker

Igor Petrov (Yu. G. Shafer Institute of Cosmophysical Research and Aeronomy)

Description

The paper presents analysis of showers with energy E = 5-50 EeV and zenith angle less than 60 degrees. A quantitative estimate was obtained for muons with a threshold greater than 1 GeV at different distances from the shower axis, and the fraction of muons at a distance of 600 m from the axis. An empirical relationship was found between the fraction of muons and the longitudinal development of the shower — with the depth of the development maximum $X_{max}$. The dependence of the average depth of the maximum of the cascade curve $X_{max}$ on the shower energy E was found. The fluctuations of $X_{max}$ were estimated at fixed energies. Experimental data and calculations by the QGSJETII-04 model for a proton and an iron nucleus were used to estimate the mass composition of cosmic rays of highest energies.

Primary authors

Dr. Stanislav Knurenko (Yu. G. Shafer Institute of Cosmophysical Research and Aeronomy) Igor Petrov (Yu. G. Shafer Institute of Cosmophysical Research and Aeronomy)

Presentation Materials

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