Revisiting the Monopole Components of Effective Interactions for the Shell Model

摘要: In this paper, we revisit the monopole components of effective interactions for the shell model. Without going through specific nuclei or gaps, universal roles central, tensor, and spin–orbit forces can be proved, reflecting the intrinsic features model interactions. For matrix elements, even odd channels central force often have a canceling effect. However, for contributions to evolution, its odd channels could both positive negative contributions, enhancing the role on structure. Tensor is generally weaker than force. However, effect evolutions, tensor can dominate play competitive role. A different systematics has been discovered between T = 1 0 channels. example, force, well established in channel, becomes uncertain channel. We calculate properties neutron-rich oxygen calcium isotopes order to study channel further. It learned that main improvements empirical are traced noncentral forces, antisymmetric (ALS) originated from manybody perturbations three-body also an explicit 1 tensor less constrained so their differ different empirical The influence may sometimes canceled by many-body effects. interactions, which main source neutron–proton correlations, tensor forces leading components. channels, which act between like-particles, request correlations more demanding, anomaly might more serious.