Physics – Nuclear Physics
Scientific paper
Aug 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icrc....6..180g&link_type=abstract
IN: International Cosmic Ray Conference, 18th, Bangalore, India, August 22-September 3, 1983, Conference Papers. Volume 6 (A85-2
Physics
Nuclear Physics
Cosmic Rays, Elementary Particle Interactions, Particle Collisions, Scaling Laws, Cascades, Feynman Diagrams, Hadrons, Muons, Nuclei (Nuclear Physics)
Scientific paper
Experimental data used in simulations of cosmic-ray cascades are examined on the basis of the hadron-nucleus interaction model of Gaisser et al. (1983), with a focus on the question of Feynman scaling or scaling violation. The results are presented in graphs and characterized, and it is found that fragmentation-region scaling is supported by experiments involving particle production in the forward region of the rapidity plot, such as studies of depth of maximum, high-energy muons, and gamma-ray/hadron families. Measurements of low-energy-muon fluxes in EAS, however, favor E exp 1/4 or even sq rt E multiplicity laws and reflect particle production in the central and backward regions of the plot. Hence a realistic model providing for only logarithmic violation of scaling in the fragmentation region and for steeper increases in rapidity density for secondaries than for pp collisions can account for the differences adequately.
Gaisser Thomas K.
Stanev Todor
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