Structure analysis for hole-nuclei close to by a large-scale shell-model calculation
Nov 13, 20139 pages
Published in:
- Phys.Rev.C 88 (2013) 5, 054310
- Published: Nov 13, 2013
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Abstract: (APS)
The structure of neutron-rich nuclei with a few holes in respect of the doubly magic nucleus 132Sn is investigated by means of large-scale shell-model calculations. For a considerably large model space, including orbitals allowing both neutron and proton core excitations, an effective interaction for the extended pairing-plus-quadrupole model with monopole corrections is tested through detailed comparison between the calculation and experimental data. By using the experimental energy of the core-excited 21/2+ level in 131In as a benchmark, monopole corrections are determined that describe the size of the neutron N=82 shell gap. The level spectra, up to 5 MeV of excitation in 131In, 131Sn, 130In, 130Cd, and 130Sn, are well described and clearly explained by couplings of single-hole orbitals and by core excitations.- 21.10.-k
- 21.60.Cs
- 21.30.Fe
- 27.60.+j
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