EMPIRICAL PARADIGMS AS AMPLIFIED SIGNATURES OF STRUCTURE IN THE RADIOACTIVE BEAM ERA

With radioactive beams, there are enormous opportunities for exciting research but the beam intensities will often be orders of magnitude le ss than we are accustomed to. As a result we need highly efficient det ectors and instruments as well as better, more: efficient, signatures of structure. Some universal correlations of nuclear observables that were recently discovered seem to provide such signatures and to act in effect as magnifying glasses to highlight anomalous behavior, changes in underlying shell structure, or new manifestations of collectivity These correlations will be discusssed, as will their theoretical impli cations and the challenges to microscopic theory that they provide. Fi nally, some discussion will be offered of new experimental approaches to studies involving weak radioactive beams, and the kinds of nuclear structure information that can be extracted.