Comparison of features of high-energy proton and alpha-particle interactions with C, Fe, and Pb nuclei in various models

The results that the FLUKA, GHEISHA, and QGSM codes produce for the features of hadron interactions are compared with one another and with experimental data. Distinctions between hadronic cascades computed in lead and iron on the basis of the different codes are analyzed. The possibility of using model concepts underlying the codes in question at energies above 1 TeV is considered.