Validity of Scaling toeV and High-Energy Cosmic-Ray Composition
- 16 February 1981
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 46 (7), 459-463
- https://doi.org/10.1103/physrevlett.46.459
Abstract
It is shown that evidence on cosmic-ray showers of energy 3× to eV indicates that scaling in the fragmentation region is valid up to the highest energies if (and only if) hadron-air inelastic cross sections continue to rise in the manner observed at lower energies. It is also shown, with use of additional air-shower evidence, that , the logarithmic mean primary mass number, changes from (4±2) at 1.6× eV to () at and above 3× eV.
Keywords
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