Shape isomerism and magicity in Ni isotopes
Jun 18, 202121 pages
Published in:
- Mod.Phys.Lett.A 36 (2021) 18, 2150128
- Published: Jun 18, 2021
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Abstract: (WSP)
A systematic study of shapes in Ni (Z = 28) isotopes has been made in the Relativistic–Hartree–Bogoliubov (RHB) formalism with two types of density-dependent NN interactions which are based on the range of meson-exchange. The constraint calculations assuming the axial and triaxial-symmetry predict the shape isomerism in the case of 56,64,66,68,70,80Ni isotopes. Significant jumps at N = 28, 40, 50 in the binding energy per nucleon (BE/A) and in the S2n correspond to the neutron shell closure, and 56,68,78Ni as doubly magic nuclei. The present calculation supports the recently reported calculations using the non-relativistic Hartree–Fock (HF) Skyrme SIII [1] interaction predicting the importance of tensor parameter in order to reproduce the experimental findings of the proton level crossing at N = 46. The results obtained are in agreement with experiment and with other theoretical studies.- 25.70.-z
- 25.70.Gh
- 25.70.Jj
- 25.70.Mn
- Nuclear structure models and methods
- shape isomerism
- magicity
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