Nuclear Level Densities Off of the Stability Line.

Nuclear level densities have been extensively studied on or near the valley of stability. Because the data base is so sparse away from the valley of stability, the systematics found for stable nuclei are assumed to apply off the line of stability as well. A model which predicts different systematics off of the stability line is examined. A pair of recent measurements provide tentative support for the new hypothesis, though it is clear additional data are needed. [ABSTRACT FROM AUTHOR]