Fig. 3

Systematics of nuclear observables. Evolution of a \(R_{\mathrm{p}}{\mathrm{/}}R_{\mathrm{p}}^{{\mathrm{cal}}}\), b B(E2) and c e_p − e_p+1 with proton number up to Z = 22 and for isotonic chains up to N = 28. Vertical dotted and thin-dashed lines denote positions of the traditional proton magic numbers and Z = 6, respectively. The error bars for data in a are evaluated using the errors, while the ones in b are the errors from the literature. For clarity, the error bars in c, some of which are slightly larger than the symbols, are not shown. d Two-dimensional lego plot of c