Excitation of baryon resonances in charge-exchange reactions of heavy nuclei

J.L. Rodríguez-Sánchez (1) , J.C. David (1) , A. Boudard (1) , J. Cugnon , S. Leray (1) , D. Mancusi (2)

1 IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers
2 SERMA - Service d’Études des Réacteurs et de Mathématiques Appliquées

The Liège intranuclear-cascade model (INCL) has been improved using a refined description of the matter and energy densities in the nuclear surface. Hartree-Fock-Bogoliubov calculations with the Skyrme interaction were used to obtain a more realistic description of the proton and neutron density profiles. We find that the new approach, together with a realistic modeling of the de-excitation process of the nuclear pre-fragments, improves the description of the production cross sections of the heaviest nuclear residues produced by charge-exchange processes in spallation reactions, where the excitation of baryonic resonances plays an important role.

Domaines: Physique Nucléaire Théorique [nucl-th]

J.L. Rodríguez-Sánchez, J.C. David, A. Boudard, J. Cugnon, S. Leray, et al.. Excitation of baryon resonances in charge-exchange reactions of heavy nuclei. FAIR next generation scientists, May 2017, Sitges, Spain. pp.012002, ⟨10.1088/1742-6596/1024/1/012002⟩. ⟨hal-01823283⟩