| A=130区缺中子核122Cs与134Ce高自旋态研究 |
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| 引用本文： | 朱胜江,禹英男,甘翠云,朱凌燕,M·萨哈伊,肖树冬,李明亮,车兴来,温书贤,竺礼华,吴晓光,李广生.A=130区缺中子核122Cs与134Ce高自旋态研究[J].原子核物理评论,2004,21(4):315-319. |
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| 作者姓名： | 朱胜江 禹英男 甘翠云 朱凌燕 M·萨哈伊 肖树冬 李明亮 车兴来 温书贤 竺礼华 吴晓光 李广生 |
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| 作者单位： | 1 清华大学物理系 北京; 2 中国原子能科学研究院 北京; |
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| 基金项目： | 国家重点基础研究发展规划资助项目(G2000077405); 国家自然科学基金资助项目(10375032); 教育部博士点基金资助项目(20030003090) |
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| 摘 要： | 通过重离子核反应与在束γ谱的实验技术,对A=130缺中子核区122Cs与134Ce核的高自旋态进行了研究,所用核反应分别为107Ag(19F,1p3n)与122Sn(16O,4n).实验结果扩展了122Cs与134Ce的能级纲图.在122Cs中发现可能是属于手征二重带的结构,而在134Ce核的高自旋态结构中呈现出重要的具有不同γ形变的形状共存特性.Through heavy ion nuclear reaction and in-beam γ-ray spectroscopy technique, the high spin states of neutron-deficient~(122)Cs and~(134)Ce nuclei in A=130 region have been studied. The~(107)Ag(~(19)F, 1p3n) and~(122)Sn(~(16)O, 4n) reactions were used. The previous level schemes of~(122)Cs and~(134)Ce have been extended. Possible chiral doublet bands in~(122)Cs have been observed and a shape coexistence with different γ values in~(134)Ce are suggested.
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| 关 键 词： | 核结构 高自旋态 手征二重带 形状共存 |
| 文章编号： | 1007-4627(2004)04-0315-05 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 2003年8月16日 |
High Spin-states of 122Cs and 134Ce in A=130 Neutron-deficient Region |
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| ZHU Sheng-jiang.High Spin-states of 122Cs and 134Ce in A=130 Neutron-deficient Region[J].Nuclear Physics Review,2004,21(4):315-319. |
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| Authors: | ZHU Sheng-jiang |
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| Institution: | (1 Department of Physics; Tsinghua University; Beijing 100084; China; 2 China Institute of Atomic Energy; Beijing 102413; China ); |
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| Abstract: | Through heavy ion nuclear reaction and in-beam γ-ray spectroscopy technique, the high spin states of neutron-deficient~(122)Cs and~(134)Ce nuclei in A=130 region have been studied. The~(107)Ag(~(19)F, 1p3n) and~(122)Sn(~(16)O, 4n) reactions were used. The previous level schemes of~(122)Cs and~(134)Ce have been extended. Possible chiral doublet bands in~(122)Cs have been observed and a shape coexistence with different γ values in~(134)Ce are suggested. |
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| Keywords: | nuclear structure high spin state chiral doublet band shape coexistence |
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