Giant Quadrupole Resonance inMg24,26: A Comparison of Inelastic-Scattering andα-Capture Experiments

The distribution of giant quadrupole resonance strength in ${}_{}{}^{24,26}{}_{}{}^{}\mathrm{Mg}$ obtained from inelastic $\alpha$- and proton-scattering experiments and $\alpha$-capture experiments have now been shown to be compatible. The results show that the giant quadrupole resonance strength in ${}_{}{}^{24}{}_{}{}^{}\mathrm{Mg}$ and ${}_{}{}^{26}{}_{}{}^{}\mathrm{Mg}$ is fragmented into several states or clusters of states and suggest that the giant quadrupole resonance states have very different ${\alpha }_0$-decay strength.