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Chinese Physics C> 2003, Vol. 27> Issue(11) : 984-989 

Configuration-Dependent Bands in 169Re

  •  Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan3 Department of Technical Physics and MOE Key Laboratory, Peking University, Beijing 100871, China4 Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan

  • High-spin states in 169Re were studied and resulted in the identification of a strongly coupled band based on the 9/2－[514] Nilsson state and a decoupled band built on the h9/2 intruder proton orbital (nominally 1/2－[541]). The cranked shell nodel calculations present configuration-dependent deformations that can explain the different band crossing frecpiencies. The experimental 9/2－[514] band in Re shows the largest signature splitting at low spin among the known odd mass Re isotopes. After the alignment of a pair of the i13/2 neutrons, the phase of the splitting is inverted with a significantly reduced amplitude. Additionally, a three-quasipariticle band was observed and assigned to be built likely on the π9/2－[514]⊙AE configuration.
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    [1] Roux D G et al. Phys. Rev., 2001, C63:0243032 Carlsson H et al. Nucl. Phys., 1993,A551:295 3 Hildingsson L et al. Nucl. Phys., 1990,A513:394 4 ZHOU Xiao–Hong et al. High Energy Phys. and Nucl. Phys., 2002,26(10) :991 (in Chinese)(周小红等.高能物理与核物理,2002,26(10) :991)5 ZHOU X H et al. Eur. Phys. J., 2002,A15:285 6 Nazarewiez W, Wyss R, Johnson A. Phys. Lett., 1989, B225:208 7 Nazarewicz W et al. Nucl. Phys., 1985, A435:397 8 XU F R, Satuta W, Wyss R. Nucl. Phys., 2000, A669:119 9 Satula W, Wyss R, Magierski P. Nucl. Phys., 1994, A578:4510 XU F R et al. Phys. Lett., 1998, B435:257 11 YU C H et al. Nucl. Phys., 1990, A511:15712 Kibedi T et al. Nucl. Phys., 1992,A539:13713 ZHANG Y H et al. Phys. Rev,, 2002, C65:014302 14 Mueller W F et al. Phys. Rev., 1994, C50:1901 15 Mueller W F et al. Phys. Rev., 1999, C59:2009 16 Frauendorf S, May F R. Phys. Lett., 1983, B125:245 17 Bengtsson R et al. Nucl. Phys., 1984, A415:18918 Bark R A, Dracoulis G D, Stuchbery A E. Nucl. Phys., 1990, A514: 50319 Recht J et al. Nucl. Phys., 1985, A440:36620 Dracoulis G D et al. Nucl. Phys., 1988, A486:414 21 Theine K et al. Nucl. Phys., 1992, A548:71

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ZHOU Xiao-Hong, XU Fu-Rong, ZHANG Yu-Hu and ZHENG Yong. Configuration-Dependent Bands in 169Re[J]. Chinese Physics C, 2003, 27(11): 984-989.
ZHOU Xiao-Hong, XU Fu-Rong, ZHANG Yu-Hu and ZHENG Yong. Configuration-Dependent Bands in 169Re[J]. Chinese Physics C, 2003, 27(11): 984-989. shu
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Received: 2003-02-21
Revised: 1900-01-01
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Configuration-Dependent Bands in 169Re

    Corresponding author: ZHOU Xiao-Hong,
  • Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan3 Department of Technical Physics and MOE Key Laboratory, Peking University, Beijing 100871, China4 Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan
  • Received Date: 2003-02-21
  • Accepted Date: 1900-01-01
  • Available Online: 2003-11-05

Abstract: High-spin states in 169Re were studied and resulted in the identification of a strongly coupled band based on the 9/2－[514] Nilsson state and a decoupled band built on the h9/2 intruder proton orbital (nominally 1/2－[541]). The cranked shell nodel calculations present configuration-dependent deformations that can explain the different band crossing frecpiencies. The experimental 9/2－[514] band in Re shows the largest signature splitting at low spin among the known odd mass Re isotopes. After the alignment of a pair of the i13/2 neutrons, the phase of the splitting is inverted with a significantly reduced amplitude. Additionally, a three-quasipariticle band was observed and assigned to be built likely on the π9/2－[514]⊙AE configuration.

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