Calculation of Equilibrium and Pre-equilibrium ~4He-Emission Spectra at 62 MeV Proton Incident Energy

摘要

In this study, the 4He-emission cross sections for ~(27)Al, ~(54,56)Fe, ~(197)Au, ~(208)Pb and ~(209)Bi target nuclei have been calculated at 62 MeV proton energy. In these calculations, the pre-equilibrium effects have been investigated. The pre-equilibrium calculations involve the geometry dependent hybrid model and hybrid model. A comparison with theoretical calculations (ALICE/ASH) has been performed and the empirical formulas for the ~4He-emission cross sections produced at 62 MeV proton energy have been derived.