Very extended shpaes in the A {approximately} 150 mass region

Technical Report · Tue Aug 01 04:00:00 EDT 1995

DOI:https://doi.org/10.2172/166477· OSTI ID:166477

Chasman, R. R.

There was a report of a rotational band in {sup 152}Dy or {sup 153}Dy that is characterized by a dynamic moment of inertia of 130h{sup 2} MeV{sup -1}. For purposes of orientation, it should be noted that the well known superdeformed bands in this region are characterized by moments of inertia of {approximately}90. Some calculations were carried out in two- and three-dimensional shape spaces, in order to understand this experimental observation. These calculations show either very shallow minima and/or minima that do not become yrast below I = 90 at the very large deformations that would seem to be required to explain such a large moment of inertia. We extended our four-dimensional deformation space Strutinsky calculations to a study of this mass region, with the hope of gaining some insight into the nature of this band. We are also analyzing the other nuclides of this mass region with the hope of finding other instances of such very extended shapes. This analysis is almost complete.

• Research Organization: Argonne National Lab., IL (United States)
• OSTI ID: 166477
• Report Number(s): ANL--95/14; ON: DE96000985
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DYSPROSIUM 152
DYSPROSIUM 153
MOMENT OF INERTIA
NUCLEAR DEFORMATION
PROGRESS REPORT
STRUTINSKY THEORY