In-beam spectroscopy of neutron-rich nuclei: New application of massive-transfer reactions

In-beam $\gamma$-ray spectroscopic studies have been performed using massive-transfer reactions induced by ${}_{}{}^7{}_{}{}^{}\mathrm{Li}$ ions on ${}_{}{}^{100}{}_{}{}^{}\mathrm{Mo}$ and ${}_{}{}^{154}{}_{}{}^{}\mathrm{Sm}$ targets to assess the characteristics of the technique and to obtain new spectroscopic information for ${}_{}{}^{104}{}_{}{}^{}\mathrm{Ru}$ and ${}_{}{}^{156}{}_{}{}^{}\mathrm{Gd}$. This method opens new regions of neutron-rich nuclei for spectroscopic studies and provides a favorable population of high-spin states. Massive-transfer reactions are found also to provide an excellent filter for isolating events leading to specific reaction products.