ISF 2.05

The nuclear shell structure near stability is well established. Large gaps in the singleparticle
energy spectrum lead to the characteristic bunching of energy levels. Towards neutronrich
nuclei, a reduced spin-orbit force, diffuse density and the increasing importance of the tensor
force are expected to modify the shell structure significantly. In the scenario shown in this
figure, the shell gaps have disappeared and the single-particle states are more evenly spaced.
Adapted from [Dob96].

References:
[Dob96] J. Dobaczewski et al., Phys. Rev. C 53, 2809 (1996)