Elastic-scattering angular distribution for the weakly bound nucleus ${}^6\mathrm{Li}$ on the deformed rare-earth ${}^{159}\mathrm{Tb}$ target nucleus has been measured at energies around the Coulomb barrier. The elastic-scattering cross sections for this reaction consist of inelastic contributions from low-lying excited states of ${}^{159}\mathrm{Tb}$. The pure elastic cross sections have been extracted from the admixture of elastic and inelastic data. The optical model potential parameters for the system have been obtained from the extracted pure elastic-scattering cross sections. Coupled-channel calculations have been performed with this set of potential parameters, to compare the theoretical and experimental inelastic-scattering cross sections. The work has been extended to obtain the spectroscopic factor for ${}^{158}\mathrm{Tb}+n$ configuration from the experimental $1n$-pickup data.

• Received 14 October 2022
• Accepted 7 November 2022

DOI:https://doi.org/10.1103/PhysRevC.106.064612