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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Be-9+Sn-120 scattering at near-barrier energies within a four-body model

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Autor(es):
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Arazi, A. [1, 2] ; Casal, J. [3, 4, 5] ; Rodriguez-Gallardo, M. [3] ; Arias, J. M. [3] ; Lichtenthaeler Filho, R. [6] ; Abriola, D. [1] ; Capurro, O. A. [1] ; Cardona, M. A. [1, 2] ; Carnelli, P. F. F. [1, 2] ; de Barbara, E. [1] ; Fernandez Niello, J. [1, 2] ; Figueira, J. M. [1, 2] ; Fimiani, L. [1] ; Hojman, D. [1, 2] ; Marti, G. V. [1] ; Martinez Heimman, D. [1, 2] ; Pacheco, A. J. [1, 2]
Número total de Autores: 17
Afiliação do(s) autor(es):
[1] Comis Nacl Energia Atom, Lab TANDAR, Av Gral Paz 1499, BKNA1650, San Martin - Argentina
[2] Consejo Nacl Invest Cient & Tecn, Av Rivadavia 1917, C1033AAJ, Buenos Aires, DF - Argentina
[3] Univ Seville, Fac Fis, Dept Fis Atom Mol & Nucl, Apartado 1065, E-41080 Seville - Spain
[4] European Ctr Theoret Studies Nucl Phys & Related, Villa Tambosi, Str Tabarelle 286, I-38123 Villazzano, TN - Italy
[5] Fdn Bruno Kessler, Villa Tambosi, Str Tabarelle 286, I-38123 Villazzano, TN - Italy
[6] Univ Sao Paulo, Inst Fis, Dept Fis Nucl, BR-05508090 Sao Paulo, SP - Brazil
Número total de Afiliações: 6
Tipo de documento: Artigo Científico
Fonte: Physical Review C; v. 97, n. 4 APR 18 2018.
Citações Web of Science: 4
Resumo

Cross sections for elastic and inelastic scattering of the weakly bound Be-9 nucleus on a Sn-120 target have been measured at seven bombarding energies around and above the Coulomb barrier. The elastic angular distributions are analyzed with a four-body continuum-discretized coupled-channels (CDCC) calculation, which considers Be-9 as a three-body projectile (alpha + alpha + n). An optical model analysis using the Sao Paulo potential is also shown for comparison. The CDCC analysis shows that the coupling to the continuum part of the spectrum is important for the agreement with experimental data even at energies around the Coulomb barrier, suggesting that breakup is an important process at low energies. At the highest incident energies, two inelastic peaks are observed at 1.19(5) and 2.41(5) MeV. Coupled-channels (CC) calculations using a rotational model confirm that the first inelastic peak corresponds to the excitation of the 2(1)(+) state in Sn-120, while the second one likely corresponds to the excitation of the 3(1)(-) state. (AU)

Processo FAPESP: 13/22100-7 - Física de núcleos exóticos com o sistema RIBRAS
Beneficiário:Rubens Lichtenthäler Filho
Linha de fomento: Auxílio à Pesquisa - Regular