Key points are not available for this paper at this time.
The spectrum of about 6 10^5 muons in the zenith angle range =68^-82^ and the energy range E=1-1000 GeV has been measured by a Kiel-Desy collaboration at Hamburg. The data are represented by a simple form fit which goes as E^-2. 57sec for the integral spectrum at very high energies. indicating that the galactic cosmic-ray nucleon spectrum is flatter than E^-2. 75 beyond 1000 GeV.
Jokisch et al. (Thu,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: