Multi-quasiparticle Isomers in {sup 174}Lu.

Journal Article · Wed Jul 01 04:00:00 EDT 2009 · Phys. Rev. C

DOI:https://doi.org/10.1103/PhysRevC.80.014304· OSTI ID:962879

Kondev, F G; Dracoulis, G D; Lane, G J; Ahmad, I; Byrne, A P; Carpenter, M P; Chowdhury, P; Janssens, R V. F.; Kibedi, T; Lauritsen, T; Lister, C J; Seweryniak, D; Tandel, S K; Zhu, S

Four-, six-, and eight-quasiparticle isomers with K{pi} = 14{sup -}, (21{sup +}) and (26{sup -}) have been identified in the deformed nucleus {sup 174}Lu, in addition to the previously reported K{pi} = 13{sup +}, four-quasiparticle isomeric state. Analysis of alignments and in-band crossover-to-cascade branching ratios lead to the characterization of the configurations associated with the K{pi} = 14{sup -} and (21{sup +}) isomers. The excitation energies of the observed states are compared with results from multi-quasiparticle calculations that include effects of blocking and residual nucleon-nucleon interactions. Good agreement is found for medium-spin (I = 13-14 {h_bar}) and the highest spin (I > 20{h_bar}) states observed, but there remain ambiguities in assigning configurations in the I = 15-19 {h_bar} region.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC; ANSTO Grant; Australian Research Council Discovery Projects
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 962879
• Report Number(s): ANL/NE/JA-63460
• Journal Information: Phys. Rev. C, Journal Name: Phys. Rev. C Journal Issue: Jul. 2009 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
EXCITATION
ISOMERS
NUCLEON-NUCLEON INTERACTIONS
SPIN