Interactions between hadrons and nuclei of air atoms at PCR energies of 0.3–3 PeV

The Tien Shan experimental data on hadrons with energies 1–50 TeV in extensive air showers from (0.3–3)-PeV primary cosmic rays are compared with the results of different model calculations, including the CORSIKA + QGSJET1 program. On the basis of the comparison of the energy spectra of hadrons, conclusions are drawn about the increase in the interaction cross section between protons and nuclei of air atoms with an increase in energy from 0.1 TeV (accelerators with a fixed target) to 3 PeV (extensive air showers) and the behavior of other main interaction parameters.