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Study of the νi13/2-1 band in 189Pt

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【作者】 滑伟； 周小红； 张玉虎； 郭应祥； Oshima M.； Toh Y.； Koizumi M.； Osa A.； Hatsukawa Y.； 亓斌； 张双全； 孟杰； Sugawara M.；

【Author】 HUA Wei1,2; ZHOU Xiao-Hong1,2; ZHANG Yu-Hu1,2 GUO Ying-Xiang1 Oshima M.3 Toh Y.3 Koizumi M.3 Osa A.3 Hatsukawa Y.3 QI Bin4 ZHANG Shuang-Quan4 MENG Jie4 Sugawara M.5 1 (Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China) 2 (Graduate University of Chinese Academy of Sciences, Beijing 100049, China) 3 (Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan) 4 (School of Physics, and State-Key Lab. Nucl. Phys. & Tech., Peking University, Beijing 100871, China) 5 (Chiba Institute of Technology, Narashino, Chiba 275-0023, Japan)

【机构】 Institute of Modern Physics,Chinese Academy of Sciences； Graduate University of Chinese Academy of Sciences； Japan Atomic Energy Agency； School of Physics,and State-Key Lab. Nucl. Phys. & Tech., Peking University； Chiba Institute of Technology,Narashino；

【摘要】 High-spin levels of 189Pt have been studied with the in-beam γ-spectroscopy method via the 176Yb(18O,5n) reaction at the beam energies of 88 and 95 MeV. The previously known νi-131/2 band has been confirmed, and its unfavored signature branch extended up to the 13/2+ state. Within the framework of the triaxial particle-rotor model, the νi-113/2 band is suggested to be associated with the 11/2[615] configuration, and to have triaxial deformation.

【Abstract】 High-spin levels of 189Pt have been studied with the in-beam γ-spectroscopy method via the 176Yb(18O,5n) reaction at the beam energies of 88 and 95 MeV. The previously known νi-131/2 band has been confirmed, and its unfavored signature branch extended up to the 13/2+ state. Within the framework of the triaxial particle-rotor model, the νi-113/2 band is suggested to be associated with the 11/2[615] configuration, and to have triaxial deformation.

【关键词】 high-spin state； configuration； particle-rotor model；
【Key words】 high-spin state； configuration； particle-rotor model；
【基金】 Supported by National Natural Science Foundation of China (10825522,10805058,10775158);West Light Foundation of the Chinese Academy of Sciences (O803080XBB);National Basic Research Program of China (2007CB815001);Project sponsored by SRF for ROCS, SEM (O803090HGJ);Chinese Academy of Sciences
  • 【文献出处】 中国物理C ,Chinese Physics C , 编辑部邮箱 ,2009年09期
  • 【分类号】O571
  • 【下载频次】22
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