Extended Intranuclear Cascade model for pickup reactions induced by 50-MeV-range protons

Abstract

Abstract. The intranuclear cascade model was investigated to explain (p, dx) and (p, αx) reactions at incident energies of around 50 MeV. Since these reactions are governed mainly by the direct pickup process, the model was expanded to include exclusive pickup processes leading to hole-state-excitations. The energy of the outgoing clusters is determined with singleparticle energies of transferred nucleons, the reaction Q-value, and the recoil of the residual nucleus. The rescattering of the produced cluster inside the nucleus is treated within the intranuclear cascade model. The emission angle is given by the sum of momentum vectors of transferred nucleons in addition to the deflection at the nuclear surface, which was introduced to explain angular distributions of elastic scattering. Double differential cross sections of reactions were calculated and compared with experimental data. The proposed model showed a high predictive power over the wide range of emission energies and angles. The treatment of the cluster transport inside the nucleus was also verified.

Direct pickup and knockout processes in inclusive (p,αx) reactions from 42 to 300 MeV

“…Therefore, our α production model is suited to the present study. We have already included direct pickup [25], knockout [26], and indirect pickup [26]. Now we improve the descriptions of direct pickup and knockout to obtain a consistent exposition of (p, αx) reactions at incident energies below a few hundred megaelectronvolts.…”