Study of the muon component of EAS with the aid of an underground magnetic spectrometer

Details Study of the muon component of EAS with the aid of an underground magnetic spectrometer Study of the muon component of EAS with the aid of an underground magnetic spectrometer

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980izyer..44..533k&link_type=abstract

(Vsesoiuznaia Konferentsiia po Kosmicheskim Lucham, Yerevan, Armenian SSR, June 5-7, 1979.) Akademiia Nauk SSSR, Izvestiia, Seri

Computer Science

Cosmic Ray Showers, Energy Distribution, Energy Spectra, Magnetic Spectroscopy, Muons, Spatial Distribution, Gamma Function, Nuclear Interactions, Scale Models, Scintillation Counters, Spectrometers, Underground Structures

Scientific paper

The spatial and energetic characteristics of the muon component of extensive air showers are investigated using an underground magnetic spectrometer sensitive to muon energies up to 500 GeV. A total of 1229 muon events were selected from those recorded during 1500 h of spectrometer operation at a depth of 40 m according to the double coincidence of scintillation counters at the time of the spectrometer event. Energy spectra of muons at given distances from the shower axis and radial distributions of muons with given energies are presented and shown to be approximated not by the Greisen formula, but by a gamma function. Scaling models for primary protons and iron nuclei are also shown to be inappropriate, whereas a model of a high-multiplicity standard primary composition provides a better fit to the data. An upper limit to the primary muon/pion ratio in nuclear interactions at energies between 10 to the 13th and 10 to the 15th eV of 0.03 is also obtained.

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