Study of the shell evolution effect on the nuclei around the 78Ni core structure
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Date
2019Author
Laouet, Nadjet
Benrachi, Fatima
Guerraiche, Habiba
Benhizia, Karima
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The interactions between the core which is anymore inert and the valence nucleons play a very important
role in the interpretation of nuclear properties far from stability. The work done in this study is based on
the calculations of energy spectra and electromagnetic properties for even-even isotones with N=52, in
the 78Ni region. Based on the interaction jj45apn with the space model jj45pn, we have realized some
modifications considering the monopole interaction and a new interaction called jj45am is introduced. The
calculations are performed in the framework of the nuclear shell model using the NuShellX@MSU code.
The shell evolution, studied by estimating the effective single-particle energies (SPEs) in this region, show
an important influence on the nuclear structure properties. The obtained results using the new interaction
jj45am are in agreement with the experimental data, and better than those given by the original one
jj45apn.
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