Evidence of the effect of strong stripping channels on the dynamics of the Li8+Ni58 reaction
| Autor: | Juan Antonio Alcantara-Nunez, Valdir Guimaraes, O. C. B. Santos, U. Umbelino, M. C. Morais, Rubens Lichtenthäler, J. C. Zamora, Marlete Assunção, Viviane Morcelle, E. O. N. Zevallos, A. M. Moro, Jin Lei, Alinka Lepine-Szily, A. L. de Lara, P. N. de Faria, S. Appannababu, J. M. B. Shorto, V. A. B. Zagatto, A. Serra, Valdir Brunetti Scarduelli, Roberto Linares, A. Barioni, K. C. C. Pires |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Quasielastic scattering Stripping (chemistry) 010308 nuclear & particles physics Nuclear Theory Dynamics (mechanics) Coupling (probability) Breakup 01 natural sciences 0103 physical sciences Neutron Continuum (set theory) Atomic physics Nuclear Experiment 010306 general physics Energy (signal processing) |
| Zdroj: | Physical Review C. 103 |
| ISSN: | 2469-9993 2469-9985 |
| Popis: | The $^{8}\mathrm{Li}+^{58}\mathrm{Ni}$ collision is investigated at 23.9, 26.1, 28.7, and 30 MeV bombarding energies. Quasielastic angular distributions and the singles $^{7}\mathrm{Li}$ angular and energy distributions are presented. Coupled-reaction channels (CRC) calculations, which include the coupling of the elastic channel to $^{59}\mathrm{Ni}=^{58}\mathrm{Ni}\phantom{\rule{0.16em}{0ex}}+\phantom{\rule{0.16em}{0ex}}n$ 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 $^{7}\mathrm{Li}$ 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 $^{7}\mathrm{Li}$ yields are due to nonelastic breakup contributions (transfer), whereas elastic breakup plays a minor role. |
| Databáze: | OpenAIRE |
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