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

Description

The 8 Li + 58Ni collision is investigated at 23.9, 26.1, 28.7, and 30 MeV bombarding energies. Quasielastic angular distributions and the singles 7 Li angular and energy distributions are presented. Coupled-reaction channels (CRC) calculations, which include the coupling of the elastic channel to 59Ni = 58Ni + 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 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 Li yields are due to nonelastic breakup contributions (transfer), whereas elastic breakup plays a minor role.

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Fundação de Amparo à Pesquisa do Estado de São Paulo, FAPESP (Brazil), Contratos No. 2019/02759-0, No. 2019/07767-1, No. 2016/17612-7 y No. 2013/22100-7

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Coordenação de Aperfeiçoamento de Pessoal de Nével Superior, Brasil (CAPES), código de financiación: 88887.355019/2019

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Ministerio de Ciencia, Innovación y Universidades de España. proyecto No. FIS2017-88410-P

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Fondo Europeo de Desarrollo Regional (FEDER)

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Programa Horizon 2020 de la Unión Europea No. 654002

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