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One-neutron stripping from Li-8 projectiles to Be-9 target nuclei

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Autor(es):
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Santos, O. C. B. ; Lichtenthaler, R. ; Moro, A. M. ; Pires, K. C. C. ; Umbelino, U. ; S. Serra, A. ; Zevallo, E. O. N. ; de Lara, A. L. ; Scarduelli, V. ; Alcantara-Nunez, J. ; Lepine-Szily, A. ; Lei, Jin ; Appannababu, S. ; Assuncao, M.
Número total de Autores: 14
Tipo de documento: Artigo Científico
Fonte: EUROPEAN PHYSICAL JOURNAL A; v. 59, n. 3, p. 9-pg., 2023-03-16.
Resumo

The Li-8 + Be-9 quasi-elastic angular distribution and the Be-9(Li-8,Li-7)X inclusive reaction have been measured at E-Lab = 23.8 MeV bombarding energy using the RIBRAS facility. In addition to the Li-8 scattering peak, a large yield of Li-7 particles has been observed in the identification spectra, presenting a wide energy distribution centered around and below the energy of the Li-8 quasi-elastic peak. The Li-7 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 Li-7+n and the Be-9 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 Li-7 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. (AU)

Processo FAPESP: 19/07767-1 - Reações nucleares com núcleos fracamente ligados ou com estrutura de cluster, radioativos e estáveis
Beneficiário:Leandro Romero Gasques
Modalidade de apoio: Auxílio à Pesquisa - Temático
Processo FAPESP: 19/02759-0 - Física de núcleos exóticos com o sistema RIBRAS (Radioactive Ion Beams in Brasil)
Beneficiário:Rubens Lichtenthäler Filho
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 21/12254-3 - Medidas exclusivas de reações nucleares com feixes de íons fracamente ligados estáveis e radioativos
Beneficiário:Osvaldo Camargo Botelho dos Santos
Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado