Theoretical calculations of proton reaction cross sections in a lead target with energy Ep ≤ 300 MeV

Various cross sections of the p + Pb-nat reaction are calculated in the 5- to 300-MeV energy region based on nuclear reaction models, i.e., the optical, evaporation, and exciton models, and direct reaction theory. Comparison of the calculated results with the experimental data shows that our calculations are quite reasonable. Excitation functions of some long-lived radioactive nuclei and neutron multiplicity are predicted. For medium-energy, proton-induced Pb-nat fission, an empirical formula is developed.