Abstract
We study ${}^{7}$Li${(n,{n}^{\ensuremath{'}})}^{7}$Li${}^{*}$ reactions by using the continuum-discretized coupled-channels (CDCC) method with the complex Jeukenne-Lejeune-Mahaux effective nucleon-nucleon interaction. In this study, the ${}^{7}$Li nucleus is described by an $\ensuremath{\alpha}+t$ cluster model. The calculated elastic cross sections for incident energies between 11.5 and 24.0 MeV show good agreements with experimental data. Furthermore, we calculate the neutron spectra of ${}^{7}$Li ground and excited breakup states measured at selected angular points for incident energies of 11.5 and 18.0 MeV. The results reproduce the observed data systematically.
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