Proton-nucleus cross section at high energies

Details Proton-nucleus cross section at high energies Proton-nucleus cross section at high energies

1998-09-23

arxiv.org/abs/hep-ph/9809494v1

J.Phys.G24:2037-2047,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

9pp (9 eps figures)

Scientific paper

10.1088/0954-3899/24/11/006

Cross sections for proton inelastic collision with different nuclei are described within the Glauber and multiple scattering approximations. A significant difference between approximate `Glauber' formula and exact calculations with a geometrical scaling assumption for very high-energy cross section is shown. Experimental values of proton-proton cross sections obtained using extensive air shower data are based on the relationship of proton-proton and respective proton-air absorption cross sections. According to obtained results values reported by the Akeno and Fly's Eye experimental groups are about 10% overestimated. The proper energy dependence of absorption cross section for collisions with air nuclei is of a great importance for studies of high energy cosmic rays using the Monte Carlo technique.

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