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Concluding Recommendations

In recent times we have made significant progress in our understanding of nuclear structure. We have passed important milestones and we are now faced with challenging new questions. These questions address the properties of the nucleus at the limits of excitation energy, spin, isospin, and mass. The rapid development of highly efficient experimental techniques for the detection of photons, charged particles, and neutrons makes the investigation of the central issues of nuclear structure possible. These include questions related to extreme nuclear shapes and their evolution, and the influence of the thermal environment on both low-lying modes and giant modes of excitation. Radioactive beam facilities will open the way to the study of new phenomena near the drip-lines, such as halo nuclei, neutron skins, neutron-proton pairing, the evolution of shell structure and exotic collective modes. At the same time, they will make it possible to test directly our ideas of how the chemical elements are created in stars. Great advance in our knowledge of the limits to the existence of nuclei is expected. Extrapolating from the recent observation of element 112, which lies near the predicted region of shell-stabilised nuclei, the synthesis of superheavy elements may come within reach of the next generation of radioactive beam facilities. To this end we recommend the following actions:


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