Effect of the Woods-Saxon Spin–Orbit Term on the Nuclear Spectra: 18O Application

Abstract

One of the successes in describing the nuclear structure correctly is taking into account the spin–orbit interaction. Thus, single-particle energies and nuclear magic numbers can be obtained accurately. The main subject of this study is to investigate how the strength of this spin–orbit interaction affects the nuclear structure, more specifically the nuclear spectra. In this study we carried out for this purpose, we obtained neutron single-particle energies by changing the strength of the spin–orbit term included in the Woods-Saxon potential. By using the neutron single-particle orbit energies in the calculations of the nuclear shell model, which we obtained for different strengths of spin–orbit term, we obtained the ground and low-lying excited states of the 18O isotope. According to the results, we observed that spin–orbit interactions of different strength have a discernible effect on the nuclear spectra.