Changes in the chemical composition of primary cosmic radiation at ultrahigh energies

The signals from particles of extensive air showers in the energy region of 10 17 –10 20 eV in both the surface and underground scintillation detectors of the Yakutsk array are calculated using the CORSIKA 6.616 and GEANT4 software packages and compared with experimental data. It is shown that a tra...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2011-03, Vol.75 (3), p.296-298
Main Authors: Dedenko, L. G., Glushkov, A. V., Knurenko, S. P., Makarov, I. T., Pravdin, M. I., Sleptsov, I. E., Roganova, T. M., Fedorova, G. F.
Format: Article
Language:English
Subjects:
Chemical composition
Cosmic ray showers
Cosmic rays
Detectors
Hadrons
Heavy Ions
Nuclear Physics
Particle physics
Physics
Physics and Astronomy
Scintillation
Software packages
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Summary:The signals from particles of extensive air showers in the energy region of 10 17 –10 20 eV in both the surface and underground scintillation detectors of the Yakutsk array are calculated using the CORSIKA 6.616 and GEANT4 software packages and compared with experimental data. It is shown that a transition from a heavy primary composition to proton primaries at energies (1–2.6) × 10 18 eV and from primary protons again to heavy primaries at energies above 1.3 × 10 19 eV might be observed.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873811030130