Muon density measurements with the KASCADE central detector

Details Muon density measurements with the KASCADE central detector Muon density measurements with the KASCADE central detector

Feb 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aph....16..373k&link_type=abstract

Astroparticle Physics, Volume 16, Issue 4, p. 373-386.

Physics

20

Scientific paper

Frequency distributions of local muon densities in high-energy extensive air showers (EAS) are presented as signature of the primary cosmic ray energy spectrum in the knee region. Together with the gross shower variables like shower core position, angle of incidence, and the shower sizes, the KASCADE experiment is able to measure local muon densities for two different muon energy thresholds. The spectra have been reconstructed for various core distances, as well as for particular subsamples, classified on the basis of the shower size ratio Nμ/Ne. The measured density spectra of the total sample exhibit clear kinks reflecting the knee of the primary energy spectrum. While relatively sharp changes of the slopes are observed in the spectrum of EAS with small values of the shower size ratio, no such feature is detected at EAS of large Nμ/Ne ratio in the energy range of 1-10 PeV. Comparing the spectra for various thresholds and core distances with detailed Monte Carlo simulations the validity of EAS simulations is discussed.

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