Analysis of Fusion Cross Sections in the Be-9 Projectile Breakup on Different Target Nuclei

Autor(es)

Mukeru, B. ^[1] ; Tomio, Lauro ^[2]

Afiliação do(s) autor(es)

^[1] Univ South Africa, Dept Phys, POB 392, ZA-0003 Pretoria - South Africa

^[2] Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Physics; v. 51, n. 2, SI, p. 157-169, APR 2021.
• Citações Web of Science: 0

Resumo

We present a theoretical study of total fusion (TF), complete fusion (CF), and incomplete fusion (ICF) cross sections in the breakup of Be-9 (described as n -Be-8) projectile on Sn-124, Sm-144 and Pb-208 target nuclei. We use the continuum discretized coupled-channel formalism together with a sum-rule model, by extending an approach outlined in Mukeru et al. (Nucl. Phys. A 996:121700, 2020) to another weakly bound projectile in different targets. The applicability of the model to incident energies below and around the Coulomb barrier is verified, being confirmed for all three reactions an empirical energy-dependent cutoff angular momentum expression. We show that the TF and ICF cross sections are strongly dependent on the projectile binding energy epsilon(b), whereas the CF is weakly affected by that. Despite this weak dependence, the CF contribution to the TF cross section becomes more suppressed by decreasing epsilon(b). The dependence of the ICF probability on the breakup threshold is also highlighted. (AU)

• 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