Figure 1

Projections perpendicular to the main diagonal of $\gamma$-coincidence matrices of ${}^{151}\mathrm{Tb}$ (left) and ${}^{196}\mathrm{Pb}$ (right), for the energy interval 1150–1280 keV (i.e., $\approx 48–56\hslash$) and 430–680 keV (i.e., $20–34\hslash$), respectively. Panels (a),(b) show cuts on the Total matrices, (c),(d) on the rotational planes and (e),(f) on the SD-gated spectra. Simulated SD-gated spectra are given in panels (g) and (h) (see text for details).Reuse & Permissions

Figure 2

Population of the excited rotational bands in the SD well of ${}^{151}\mathrm{Tb}$ (left) and ${}^{196}\mathrm{Pb}$ (right), relative to the corresponding SD yrast intensity (normalized to 100% at the plateau and shown by circles in the bottom panels). Data are shown by symbols: the intensities of the 1st and 2nd ridge are given in panels (a),(b) and (c),(d); panels (e),(f) refer to the SD-gated 1st ridges. Panels (g),(h) show the SD-gated $E2$ QC, with full symbols referring to data partially contaminated by $M1$’s. Predictions from simulations of the $\gamma$ decay assuming a standard (enhanced) $E1$ strength [see top panels (i) and (j)] are shown by dashed (solid) lines.Reuse & Permissions

Figure 3

The number of discrete excited SD bands obtained from the analysis of the count fluctuations of the ridge structures of ${}^{151}\mathrm{Tb}$ (left) and ${}^{196}\mathrm{Pb}$ (right). Panels (a),(b) and (c),(d) refer to the 1st and 2nd ridge, (e),(f) to the SD-gated 1st ridge. Symbols refer to data, solid lines to the Monte Carlo simulation. See the text for the dashed and dotted lines.Reuse & Permissions