From local correlations to regional systematics

Abstract

Local correlations of $2_1^{+}$ excitation energies and B(E2, $2_1^{+}\to \text{ g.s.}$) values require linear $N_p{N}_n$ systematics in a logarithmic scale, as confirmed by an experiment survey. Based on local correlations of $\alpha$-decay energies, neutron separation energies, and proton separation energies, one can decouple them into their proton and neutron contributions separately. These contributions exhibit smooth regional systematics beyond the $N_p{N}_n$ scheme.

Comments: 6 pages, 3 figures