EPJ Web Conf.
Volume 145, 2017ISVHECRI 2016 – XIX International Symposium on Very High Energy Cosmic Ray Interactions
|Number of page(s)||6|
|Section||EAS Experiments & Muons|
|Published online||26 June 2017|
Testing the QGSJET01 and QGSJETII-04 models with the help of atmospheric muons
1 Faculty of Physics M.V. Lomonosov Moscow State University, Leninskie Gory, 119991 Moscow, Russia
2 Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 119234 Moscow, Russia
3 State Scientific Center Institute for Theoretical and Experimental Physics, National Research Center “Kurchatov Institute”, 117218 Moscow, Russia
4 National Research Nuclear University (MEPhI) Moscow Engineering Physics Institute, 115409 Moscow, Russia
Published online: 26 June 2017
More accurate original calculations of the atmospheric vertical muon energy spectra at energies 102 − 105 GeV have been carried out in terms of the QGSJET01 and QGSJETII-04 models. The Gaisser-Honda approximations of the measured energy spectra of primary protons, helium and nitrogen nuclei have been used. The CORSIKA package has been used to simulate cascades in the standard atmosphere induced by different primary particles with various fixed energies E. Statistics of simulated cascades for secondary particles with energies (0.01 − 1) · E was increased up to 106. It has been shown that predictions of the QGSJET01 and QGSJETII-04 models for these muon fluxes are below the data of the classical experiments L3 + Cosmic, MACRO and LVD by factors of ∼ 1.7-2 at energies above 102 GeV. It has been concluded that these tested models underestimate the production of the most energetic secondary particles, namely, π-mesons and K-mesons, in interactions of primary protons and other primary nuclei with nuclei in the atmosphere by the same factors.
© The Authors, published by EDP Sciences 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
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