Open AccessDetermining the excitation energies of 68Ni Nucleus a Function of the Coupling Angle ¸a,bBy Means of Modified Surface Delta-Interaction
Author(s) -
Dalal Naji Hameed,
Ali K. Hasan
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1963/1/012062
Subject(s) - angular momentum , physics , angular momentum coupling , atomic physics , excitation , coupling (piping) , neutron , nucleus , total angular momentum quantum number , energy (signal processing) , nuclear physics , quantum mechanics , materials science , metallurgy , biology , microbiology and biotechnology
In this paper, the nuclear shell model SM was applied to study the energy levels of the nucleus the effect of orbit on energy levels was studied,we consider the residual interaction to be modified surface delta interaction MSDI. We have studied the excitation energies of the 68 Ni a nucleus, which contain two neutrons outside closed shell of the 66 Ni. the computation of eigenvalues of 68 Ni is performed in the frame of (1 p 1/2 0g 9/2 ) and (1 _p 1/2 0g 9/2 0d 5/2 ), we search the effect of the orbital 0d 5/2 on the energy levels. The energy levels and angular momentum of all possible cases were investigated. Thus, we have worked on a theoretical process to discover the relation between the energy levels and the classical coupling angle ¸ a,b at different orbital within neutron - neutron interaction. Accordingly, We have noticed that the energy levels manifest to follow two inclusive functions, which depend on the classical coupling angles, but are not constrained of angular momentum I. In conclusion, we conclude that our results agree with the experimental data.