Figure 1
Credit: Alan Stonebraker

Figure 1: Nuclear chart showing the stable nuclei (black) and those predicted to lie inside the proton and neutron drip lines (open blue). The archipelago of islands where the shell-model magic numbers are broken is shown in red. The nuclei 30Mg and 32Mg involved in this experiment are shown in green, with their shell-model structure for neutrons in the upper left-hand corner.