Search for excited superdeformed bands in {sup 151}Dy

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

DOI:https://doi.org/10.2172/166310· OSTI ID:166310

Nisius, D.; Janssens, R. V.F.; Crowell, B. ^[1]

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1. and others

Following the first report of superdeformed (SD) bands with identical transition energies in the pairs ({sup 151}Tb*,{sup 152}Dy), ({sup 150}Gd*, {sup 151}Tb) and ({sup 153}Dy*, {sup 152}Dy) (where * denotes an excited SD band), it was proposed by Nazarewicz et al. that the observations could be understood in a strong-coupling approach if pseudo SU(3) symmetry were invoked. In this model there are three limiting values of the decoupling parameter; i.e. a = 0, {plus_minus}1. In the first two cases mentioned above the pairs of bands have nearly identical transition energies and are interpreted as proton excitations involving the [200]1/2 pseudospin orbital coupled to the {sup 152}Dy core, for which the value of the decoupling parameter is calculated to be a =+1.

• Research Organization: Argonne National Lab., IL (United States)
• OSTI ID: 166310
• Report Number(s): ANL--95/14; ON: DE96000985
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DEFORMED NUCLEI
DYSPROSIUM 151
GAMMA SPECTRA
NUCLEAR DEFORMATION
NUCLEAR STRUCTURE
PROGRESS REPORT