15 de novembro de 2023 | Estruturas Nucleares e Reações, Publicações
O. C. B. Santos, R. Lichtenthäler, A. M. Moro, K. C. C. Pires, U. Umbelino, A. S. Serra, E. O. N. Zevallo, A. L. de Lara, V. Scarduelli, J. Alcántara-Núñez, A. Lépine-Szily, Jin Lei, S. Appannababu, M. Assunção
The European Physical Journal A
16/03/2023
Abstract
The 8Li + 9Be quasi-elastic angular distribution and the 9Be(8Li,7Li)X inclusive reaction have been measured at ELab=23.8 MeV bombarding energy using the RIBRAS facility. In addition to the 8Li scattering peak, a large yield of 7Li particles has been observed in the identification spectra, presenting a wide energy distribution centered around and below the energy of the 8Li quasi-elastic peak. The 7Li angular and energy distributions have been obtained and analysed assuming that these particles stem from two different mechanisms: (i) the elastic breakup (EBU), in which the projectile dissociates into 7Li+n and the 9Be target remains in its ground state and (ii) the nonelastic breakup (NEB) which accounts for absorptive processes between the neutron and the target, including the neutron transfer. The 7Li angular and energy distributions have been analyzed by the Ichimura, Austern and Vincent (IAV) model for NEB, and the Continuum-Discretized Coupled-Channels (CDCC) method for the EBU. The theoretical results are in good agreement with the experimental data.