Projected Shell Model Analysis of Multi-quasiparticle High-K Isomers in 174Hf
ZHOU Xian-Rong1, SUN Yang2, LONG Gui-Lu3, ZHAO En-Guang1,3,4
1Institute of Theoretical Physics, Chinese Academy of Sciences, PO Box 2735, Beijing 100080
2Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
3Department of Physics, Tsinghua University, Beijing 100084
4Center of Theoretical Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
Projected Shell Model Analysis of Multi-quasiparticle High-K Isomers in 174Hf
1Institute of Theoretical Physics, Chinese Academy of Sciences, PO Box 2735, Beijing 100080
2Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
3Department of Physics, Tsinghua University, Beijing 100084
4Center of Theoretical Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
Abstract： Multi-quasiparticle high-K states in 174Hf are studied in the framework of the projected shell model. The calculation reproduces well the observed ground state band as well as most of the two- and four-quasiparticle rotational bands. Some yet-unobserved high-K isomeric states in 174Hf are predicted. Possible reasons for the existing discrepancies between calculation and experiment are discussed. It is suggested that the projected shell model may be a useful method for studying the multi-quasiparticle high-K isomers and the K-mixing phenomenon in heavy deformed nuclei.
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2002, Vol. 19 
