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 ${}^{59}\mathrm{Ni}={}^{58}\mathrm{Ni}+n$ 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.

中文翻译：

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强剥离通道对 Li8+Ni58 反应动力学影响的证据

这 ${}^8李+{}^{58}你$在 23.9、26.1、28.7 和 30 MeV 轰击能量下研究了碰撞。准弹性角分布和单项${}^7李$给出了角度和能量分布。耦合反应通道 (CRC) 计算，包括弹性通道与${}^{59}你={}^{58}你+n$中子阈值以上和以下的状态提供了准弹性和转移分布的同时描述，并证明了单中子转移/分裂通道对准弹性散射的强烈影响。这${}^7李$结合连续离散耦合通道 (CDCC) 方法（用于弹性破裂）和 Ichimura、Austern 和 Vincent 的 IAV 模型，还成功地分析了角度和能量分布 [ Phys. Rev. C 32 , 431 (1985)]，用于非弹性断裂。这些计算表明，大多数${}^7李$ 产量是由于非弹性破裂贡献（转移），而弹性破裂起次要作用。