Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
12011487 | Nuclear Physics A | 2018 | 12 Pages |
Abstract
A survey of even-even nuclei in the nuclear chart showed regularities in the values of the ratio Q(21+)/(B(E2) for each nucleus for which independent measurements of both the electric quadrupole moment of the 21+ state, Q(21+), and the reduced transition probability B(E2;01+â21+) exist. As predicted by the rotational model, this ratio was found to be close to unity for the deformed nuclei in the rare-earth region. For non-rotational nuclei the absolute value of this ratio is almost always considerably lower. This latter observation can be interpreted within different models for different classes of nuclei as illustrated by a set of schematic IBA model calculations. A general mixing model and simple geometrical models are also suitable for collective non-rotational nuclei. Near magic nuclei a mechanism within the seniority scheme is compatible with the observed small value of RQB.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
Y.Y. Sharon, N. Benczer-Koller, G.J. Kumbartzki, L. Zamick, R.F. Casten,