Studies of multi-quasiparticle k-isomers in rare-earth and trans-fermium nuclei.

Conference · Mon Jan 01 00:00:00 EST 2007

OSTI ID:971145

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

Nuclear K-isomers play an important role in understanding the structure of deformed axially symmetric nuclei. Examples are presented of recent studies in the rare-earth region (A {approx} 180) using deep-inelastic and multi-nucleon transfer reactions, and in the trans-fermium region (A {approx} 250) using fusion-evaporation reactions. A specific two-level mixing scenario is invoked to explain the unusual decay of the K{sup {pi}} = 13{sup +} isomer in {sup 174}Lu. The identification of 2- and 4-quasiparticle isomers in {sup 254}No is discussed and predictions of similar isomers in neighboring No and Rf nuclei are presented.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC); Access to Major Research Facilities; Australian Research Council Discovery
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 971145
• Report Number(s): ANL/NE/CP-59104; TRN: US1001039
• Resource Relation: Conference: International Conference on Nuclear Data for Science and Technology (ND2007); Apr. 22, 2007 - Apr. 27, 2007; Nice, France
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DECAY
ISOMERS
MULTI-NUCLEON TRANSFER REACTIONS
NUCLEI