Physics
Scientific paper
Sep 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990cajph..68..906o&link_type=abstract
Can. J. Phys., Vol. 68, No. 9, p. 906 - 911
Physics
Cosmic Rays: Propagation
Scientific paper
The possible fractal nature of trajectories drawn by cosmic-ray particles in the atmosphere is investigated. In the course of the propagation of a primary cosmic-ray particle from the top of the atmosphere to sea level, it develops a ramified hadron shower, which is constituted mainly of pions and kaons. These hadrons are multiply produced at every collision of the hadron with an air nucleus. If the cross section corresponding to a definite multiplicity of hadrons decreases with the increase of energy E, in such a manner as to be reciprocally proportional to some powers of E, the resultant pattern of the shower possibly becomes fractal. Since the total interaction cross section is considered to be a superposition of many fundamental cross sections each of which corresponds to a definite multiplicity, the actual hadron shower can be interpreted as a superposition of many fractals each of which has an unique fractal dimension.
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