Summary
The prompt cosmic-ray muon flux at high energies is calculated by using a more realistic model of inclusive charm production and recent experimental results on primary spectrum in which a « knee » is taken into account. The critical energy is estimated to be 220 TeV and 1200 TeV at the zenith angle 0° and 90°, respectively.
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Minorikawa, T., Mitsui, K. Estimation of prompt cosmic-ray muon flux at high energies. Lett. Nuovo Cimento 44 (Suppl 8), 651–657 (1985). https://doi.org/10.1007/BF02746821
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DOI: https://doi.org/10.1007/BF02746821