Abstract
Large-scale shell-model calculations are carried out in the model space including neutron-hole orbitals , and to study the structure and electromagnetic properties of neutron-deficient Pb isotopes. An optimized effective interaction is used. Good agreement between full shell-model calculations and experimental data is obtained for the spherical states in isotopes . The lighter isotopes are calculated with an importance-truncation approach constructed based on the monopole Hamiltonian. The full shell-model results also agree well with our generalized seniority and nucleon-pair-approximation truncation calculations. The deviations between theory and experiment concerning the excitation energies and electromagnetic properties of low-lying and excited states and isomeric states may provide a constraint on our understanding of nuclear deformation and intruder configuration in this region.
9 More- Received 30 April 2016
- Revised 8 June 2016
DOI:https://doi.org/10.1103/PhysRevC.94.014312
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