Shell-model-based investigation on level density of Xe and Ba isotopes

• DOI: 10.1103/physrevc.107.054306
• Publication Date: 2023-05-18T14:14:12Z
• Authors: Jinbei Chen; Menglan Liu; Cenxi Yuan; Shengli Chen; Noritaka Shimizu; Xiaodong Sun; Ruirui Xu; Yuan Tian
• Keywords: Hamiltonian (control theory); Nuclear Structure; Nuclear shell model

Nuclear level density is important for evaluating nuclear reaction processes, but its microscopic investigation not frequently performed. The present work applies a recently developed shell-model-based method to estimate the of fission products $^{133--137}\mathrm{Xe}$ and $^{135--138}\mathrm{Ba}$. monopole-based universal interaction, ${V}_{\text{MU}}$, M3Y type spin-orbit interaction are combined construct shell-model Hamiltonian. model space truncated based on binding energy each configuration, estimated from monopole interaction. calculated densities $^{135--138}\mathrm{Ba}$ in good agreement with available experimental data. effects tensor forces shell spin distribution discussed.