Evidence of the effect of strong stripping channels on the dynamics of the Li-8+Ni-58 reaction

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Santos, O. C. B. ; Lichtenthaler, R. ; Pires, K. C. C. ; Umbelino, U. ; Zevallos, E. O. N. ; de Lara, A. L. ; Serra, A. S. ; Scarduelli, V ; Alcantara-Nunez, J. ; Guimaraes, V ; Lepine-Szily, A. ; Zamora, J. C. ; Moro, A. M. ; Appannababu, S. ; Assuncao, M. ; Barioni, A. ; Linares, R. ; Zagatto, V. A. B. ; de Faria, P. N. ; Morais, M. C. ; Morcelle, V ; Shorto, J. M. B. ; Lei, Jin

• Document type: Journal article
• Source: PHYSICAL REVIEW C; v. 103, n. 6, p. 10-pg., 2021-06-01.

Abstract

The Li-8+Ni-58 collision is investigated at 23.9, 26.1, 28.7, and 30 MeV bombarding energies. Quasielastic angular distributions and the singles Li-7 angular and energy distributions are presented. Coupled-reaction channels (CRC) calculations, which include the coupling of the elastic channel to Ni-59 = Ni-58 + n states above and below the neutron threshold, provide a simultaneous description of the quasielastic and transfer distributions and evidence the strong effect of the one-neutron transfer/breakup channels on the quasielastic scattering. The 7Li angular and energy distributions have been also successfully analyzed combining the continuum discretized coupled channels (CDCC) method, for the elastic breakup, and the IAV model of Ichimura, Austern, and Vincent [Phys. Rev. C 32, 431 (1985)], for the nonelastic breakup. These calculations indicate that most of the Li-7 yields are due to nonelastic breakup contributions (transfer), whereas elastic breakup plays a minor role. (AU)

• FAPESP's process: 19/07767-1 - Nuclear reactions with weakly-bound or cluster-structured radioactive and stable nuclei
• Grantee: Leandro Romero Gasques
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 19/02759-0 - Physics of exotic nuclei with the RIBRAS system
• Grantee: Rubens Lichtenthäler Filho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 13/22100-7 - Physics of exotic nuclei with the RIBRAS system
• Grantee: Rubens Lichtenthäler Filho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 16/17612-7 - Dynamics of many-body systems IV
• Grantee: Arnaldo Gammal
• Support Opportunities: Research Projects - Thematic Grants