Understanding the mechanisms of nuclear collisions: A complete study of the B-10+Sn-120 reaction

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Gasques, L. R. ; Alvarez, M. A. G. ; Arazi, A. ; Carlson, B., V ; Chamon, L. C. ; Fernandez-Garcia, J. P. ; Lepine-Szily, A. ; Lubian, J. ; Rangel, J. ; Rodriguez-Gallardo, M. ; Scarduelli, V ; Zagatto, V. A. B.

• Tipo de documento: Artigo Científico
• Fonte: PHYSICAL REVIEW C; v. 103, n. 3, p. 12-pg., 2021-03-22.

Resumo

Background: Reactions involving exotic and stable weakly bound nuclei have been extensively studied in recent years. Although several models have been successfully used to explain particular reaction outcomes, the answers to many questions remain elusive. In previous works, we presented elastic, inelastic, and transfer angular distributions for the B-10 + Sn-120 system measured at E-Lab = 31.5, 33.0, 35.0, and 37.5 MeV. The data set was analyzed through coupled reaction channels calculations in the context of the double-folding Sao Paulo potential. Purpose: We investigate nuclear reaction mechanisms for systems involving weakly bound projectiles. Method: Angular distributions for several nuclear reaction processes were measured for the B-10 + Sn-120 system at E-Lab = 39.70 MeV. Results: The new data set involves angular distributions for elastic scattering, projectile and target inelastic excitations, one-neutron pickup transfer, one-proton stripping transfer, deuteron pickup transfer, and He-3,He-4 stripping transfer. We have also observed Be-10 nuclei. The effect of the couplings to some nonelastic states on the angular distributions is discussed. Conclusion: The theoretical calculations within the coupled reaction channels formalism provide an overall good agreement with the corresponding inelastic, one-neutron stripping, one-proton pickup, one-deuteron pickup, and He-3 stripping transfer data. However, to improve the description of the elastic scattering angular distribution, the inclusion of additional channels in the coupling scheme might be necessary. (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: 19/05769-7 - Implantação de um novo sistema de aquisição para medidas exclusivas de física nuclear com feixes fracamente ligados.
• Beneficiário: Valdir Brunetti Scarduelli
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 17/05660-0 - Estudos teóricos da estrutura e reações de núcleos exóticos e sistemas de muitos corpos
• Beneficiário: Brett Vern Carlson
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 18/09998-8 - Montagem de um novo conjunto de detectores de partículas: uma ferramenta moderna para estudos de reações nucleares
• Beneficiário: Leandro Romero Gasques
• Modalidade de apoio: Auxílio à Pesquisa - Regular