Mass composition of high-energy cosmic rays and scaling violation in their interactions

Astronomy and Astrophysics – Astronomy

Scientific paper

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Cosmic Rays, Energetic Particles, High Energy Interactions, Particle Mass, Astronomical Models, Composition (Property), Energy Spectra, Muons, Pions

Scientific paper

Published results of proton-antiproton-collider experiments at energies of about 200 TeV (Kafka et al., 1977; Vernov et al., 1977) and EAS observations (Hara et al., 1981; Danilova et al., 1981) are analyzed in terms of theoretical models of the mass composition of high-energy cosmic rays. The scaling model with an asymptotic condition at about 100 GeV requires a different mass composition at higher energies, but this is not confirmed by the experimental and observational data, which are summarized and presented graphically. Deviation from scaling is shown to increase with increasing energy from 1 to 100 TeV and to continue up to about 10 PeV, but to be less severe above 100 PeV, in general agreement with the changing-interactive-characteristic model of Olejniczak et al. (1977).

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