Primary Cosmic Ray Mass Composition Studies and Muon Size Spectra of Extensive Air Showers

摘要

Results of the primary cosmic ray mass composition studies in the knee region are discussed using the experimental EAS data on size spectra of different EAS components.Special attention is payed to muon size spectra at different threshold energies and certain contradictions are pointed out.The analysis is performed in the framework of the quark-gluon string model (QGSJET) and an attempt is made to explain the existing data.