Structure of three-quasiparticle isomers in {sup 169}Ho and {sup 171}Tm.

Journal Article · Fri Sep 17 04:00:00 EDT 2010 · Phys. Rev. C

DOI:https://doi.org/10.1103/PhysRevC.82.034317· OSTI ID:1013993

Dracoulis, G D; Lane, G J; Hughes, R O; Kondev, F G; Watanabe, H; Seweryniak, D; Zhu, S; Carpenter, M P; Chiara, C J; Janssens, R V. F.; Lauritsen, T; Lister, C J; McCutchan, E A; Stefanescu, I; Chowdhury, P ^[1]

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1. Nuclear Engineering Division

A three-quasiparticle isomer with {tau}=170(8) {micro}s and K{sup {pi}} = (19/2{sup +}) has been identified in the neutron-rich isotope {sup 169}Ho. The isomer decays with K-forbidden transitions to members of a band associated with the 7/2-[523] proton configuration, whose structure is characterized through analysis of the in-band {gamma}-ray branching ratios. In the isotone {sup 171}Tm, the rotational band based on the known 19/2{sup +}, three-quasiparticle isomer has also been observed. Alternative one-proton two-neutron configurations for the isomer in {sup 169}Ho are discussed in terms of multiquasiparticle calculations and through a comparison with the structures observed in {sup 171}Tm.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC; Australian Research Coucil Discovery Program
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 1013993
• Report Number(s): ANL/PHY/JA-67755
• Journal Information: Phys. Rev. C, Journal Name: Phys. Rev. C Journal Issue: Sep. 17, 2010 Vol. 82; ISSN 0556-2813
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CONFIGURATION
ISOMERS
ISOTONIC NUCLEI
NEUTRON-RICH ISOTOPES
PROTONS
ROTATIONAL STATES