Structure Of Multi-Quasiparticle Isomers In The Region Of 177Lu

Journal Article · Tue Apr 05 04:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1905283· OSTI ID:20630873

Dracoulis, G D; Lane, G J; Kibedi, T ^[1]; Kondev, F G ^[2]; Byrne, A P ^[1]; Ahmad, I; Carpenter, M P; Freeman, S J; Janssens, R V.F.; Hammond, N J; Lauritsen, T; Lister, C J; Seweryniak, D ^[3]; Mukherjee, G ^[3]; Chowdhury, P; Tandel, S K ^[4]

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1. Department of Nuclear Physics, R.S. Phys. S.E., Australian National University, Canberra, A.C.T. 0200 (Australia)
2. Nuclear Engineering Division, Argonne National Laboratory, Argonne IL 60439 (United States)
3. Physics Division, Argonne National Laboratory, Argonne, IL 60439 (United States)
4. Department of Physics, University of Massachusetts Lowell, Lowell, MA 01854 (United States)

High-K states in the region of 177Lu have been studied using multi-nucleon transfer reactions with 136Xe beams and Gammasphere. Results include identification of the predicted 5-quasiparticle K{pi} = 39/2 - isomer in 177Lu, a 7-quasiparticle K{pi} = 49/2 + isomer in 179Ta with an anomalously fast decay, and numerous other examples in a range of Yb close to stability. The results are discussed in the context of the expectations for multi-quasiparticle states near Z = 72 and the factors which may both govern isomer formation and also give an insight into K-purity, specifically chance degeneracies, and statistical mixing above the yrast line.

• OSTI ID: 20630873
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 764; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ISOMERIC NUCLEI
LUTETIUM 177
MULTI-NUCLEON TRANSFER REACTIONS
NUCLEAR DECAY
NUCLEONS
QUASI PARTICLES
SCATTERING
TANTALUM 179
XENON 136
XENON 136 REACTIONS
YRAST STATES