High-energy nucleon-nucleus scattering and cosmic-ray cross sections

Details High-energy nucleon-nucleus scattering and cosmic-ray cross sections High-energy nucleon-nucleus scattering and cosmic-ray cross sections

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988phrvd..38...78d&link_type=abstract

Physical Review D (Particles and Fields), Volume 38, Issue 1, 1 July 1988, pp.78-84

Physics

57

Total Cross Sections, Cosmic-Ray Interactions

Scientific paper

We develop a QCD-based diffractive model for nucleon-nucleon and nucleon-nucleus cross sections in which the increase in the cross sections at high energies is driven by semihard parton-parton scattering. We use the model to calculate the absorptive cross section for protons on air at very high energies, and find excellent agreement with data from cosmic-ray experiments. The results can be used to extract σtot(pp) from σabs(p-air) in a way which is nearly independent of the input parameters. We include an approximate treatment of single-diffractive pp scattering.

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