| 176，178Os新低位激发态的识别 |
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| 引用本文： | 王华磊,张玉虎,周小红,郭应祥,雷祥国,徐树威,谢元祥,郑勇,柳敏良,邢烨炳,谢成营,宋立涛,郭文涛,T.Hayakawa,M.Oshima,Y.Toh,J.Katakura,Y.Hatssukawa,M.Matsuda,N.Shinohara,T.Ishii,H.Kusakari,M.Sugawara,T.Komatsubara.176，178Os新低位激发态的识别[J].原子核物理评论,2006,23(1):13-17. |
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| 作者姓名： | 王华磊 张玉虎 周小红 郭应祥 雷祥国 徐树威 谢元祥 郑勇 柳敏良 邢烨炳 谢成营 宋立涛 郭文涛 T.Hayakawa M.Oshima Y.Toh J.Katakura Y.Hatssukawa M.Matsuda N.Shinohara T.Ishii H.Kusakari M.Sugawara T.Komatsubara |
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| 作者单位： | [1]中国科学院近代物理研究所,甘肃兰州730000 [2]中国科学院研究生院,北京100049 [3]Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan [4]Chiba University, Inage-ku , Chiba 263-8512, Japan [5]Chiba Institute of Technology, Narashino Chiba 275-0023, Japan [6]Institute of Physics and Tandem Accelerator Center, University of Tsukuba , Ibaraki 305-0006, Japan |
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| 基金项目： | 国家自然科学基金资助项目(10025525,10375077,10221003)，国家重点基础研究发展规划资助项目(TG2000077400)，中国科学院基金资助项目~~ |
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| 摘 要： | 利用在束实验产生具有β^＋/EC衰变性质核素^176，178Ir，分析了在柬实验条件下获得的γ—γ符合数据，识别出了^176Os的4条新能级和13条新γ跃迁、^178Os的5条新能级和14条新γ跃迁。籍助氨喷嘴快速带传输系统，进一步对^176Ir的β’/EC衰变进行了测量，在确认在束测量新γ射线的同时建议了^176Ir的一个低自旋同核异能态。通过两准粒子耦舍的半经验计算，建议了^176，178Ir基态及同核异能态的组态。The γ rays following the β^＋/EC decay of ^176. 178Ir nuclei have been investigated using in-beam γ- ray experiment. A total of 4 new levels, 13 new γ transitions of ^176Os and 5 new levels, 14 new γ transitions of ^178Os were identified. In addition, with the aid of a helium-jet recoil fast tape transport system, the β^＋/EC decay of ^176Ir was further studied, the above new γ rays were proved and an isomer was proposed in ^176Ir. By the semiempirical calculations of two-quasiparticle intrinsic states of odd-odd nuclei, the configurations of ground states and isomeric states were also proposed for ^176, 178Ir
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| 关 键 词： | 低位能级纲图 在束测量 半衰期 |
| 文章编号： | 1007-4627（2006）01-0013-05 |
| 收稿时间： | 2005-06-20 |
| 修稿时间： | 2005-09-08 |
Identification of New Low-lying Excited States in 176,178Os |
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| WANG Hua-lei,ZHANG Yu-hu,ZHOU Xiao-hong,GUO Ying-xiang,LEI Xiang-guo,XU Shu-wei,XIE Yuan-xiang,ZHENG Yong,LIU Min-liang,XING Ye-bing,XIE Cheng-ying,SONG Li-tao,GUO Wen-tao,T.Hayakawa,M.Oshima,Y.Toh,J.Katakura,Y.Hatssukawa,M.Matsuda,N.Shinohara,T.Ishii,H.Kusakari,M.Sugawara,T.Komatsubara.Identification of New Low-lying Excited States in 176,178Os[J].Nuclear Physics Review,2006,23(1):13-17. |
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| Authors: | WANG Hua-lei ZHANG Yu-hu ZHOU Xiao-hong GUO Ying-xiang LEI Xiang-guo XU Shu-wei XIE Yuan-xiang ZHENG Yong LIU Min-liang XING Ye-bing XIE Cheng-ying SONG Li-tao GUO Wen-tao THayakawa MOshima YToh JKatakura YHatssukawa MMatsuda NShinohara TIshii HKusakari MSugawara TKomatsubara |
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| Institution: | 1. Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China ; 2. Graduate School of Chinese Academy o.f Sciences, Beijing 100049, China ; 3 .Japan Atomic Energy Research Institute, Tokai, Ibaraki 319-1195, Japan 4. Chiba University, Inage-ku, Chiba 263-8512, Japan; 5 .Chiba Institute of Technology, Narashino Chiba 275-0023, Japan; 6. Institute of Physics and Tandem Accelerator Center, University of Tsukuba, Ibaraki 305-0006, Japan |
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| Abstract: | The γ rays following the β^＋/EC decay of ^176. 178Ir nuclei have been investigated using in-beam γ- ray experiment. A total of 4 new levels, 13 new γ transitions of ^176Os and 5 new levels, 14 new γ transitions of ^178Os were identified. In addition, with the aid of a helium-jet recoil fast tape transport system, the β^＋/EC decay of ^176Ir was further studied, the above new γ rays were proved and an isomer was proposed in ^176Ir. By the semiempirical calculations of two-quasiparticle intrinsic states of odd-odd nuclei, the configurations of ground states and isomeric states were also proposed for ^176, 178Ir |
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| Keywords: | low-lying level scheme in-beam measurement half life |
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