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

Journal Article · Wed Sep 15 04:00:00 EDT 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.82.034317· OSTI ID:21419523

Dracoulis, G D; Lane, G J; Hughes, R O ^[1]; Kondev, F G; Chiara, C J ^[2]; Watanabe, H ^[3]; Seweryniak, D; Zhu, S; Carpenter, M P; Janssens, R V. F.; Lauritsen, T; Lister, C J; McCutchan, E A ^[4]; Stefanescu, I ^[4]; Chowdhury, P ^[5]

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1. Department of Nuclear Physics, R.S.P.E., Australian National University, Canberra ACT 0200 (Australia)
2. Nuclear Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
3. RIKEN Nishina Center, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)
4. Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
5. Department of Physics, University of Massachusetts Lowell, Lowell, Massachusetts 01854 (United States)

A three-quasiparticle isomer with {tau}=170(8) {mu}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{sup -}[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.

• OSTI ID: 21419523
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 82; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BRANCHING RATIO
COMPARATIVE EVALUATIONS
CONFIGURATION
DECAY
DIMENSIONLESS NUMBERS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EVALUATION
EXCITED STATES
FERMIONS
FORBIDDEN TRANSITIONS
GAMMA RADIATION
HADRONS
HOLMIUM 169
HOLMIUM ISOTOPES
INTERMEDIATE MASS NUCLEI
IONIZING RADIATIONS
ISOMERS
ISOTOPES
MINUTES LIVING RADIOISOTOPES
NEUTRON-RICH ISOTOPES
NEUTRONS
NUCLEAR DECAY
NUCLEI
NUCLEONS
ODD-EVEN NUCLEI
PROTONS
QUASI PARTICLES
RADIATIONS
RADIOISOTOPES
RARE EARTH NUCLEI
ROTATIONAL STATES
THULIUM 171
THULIUM ISOTOPES
YEARS LIVING RADIOISOTOPES