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非束缚核9He的实验研究

王宏伟

王宏伟. 非束缚核9He的实验研究[J]. 原子核物理评论, 2004, 21(3): 192-196. doi: 10.11804/NuclPhysRev.21.03.192
引用本文: 王宏伟. 非束缚核9He的实验研究[J]. 原子核物理评论, 2004, 21(3): 192-196. doi: 10.11804/NuclPhysRev.21.03.192
WANG Hong-wei. Experimental Investigation of Unbound Nuclei 9He[J]. Nuclear Physics Review, 2004, 21(3): 192-196. doi: 10.11804/NuclPhysRev.21.03.192
Citation: WANG Hong-wei. Experimental Investigation of Unbound Nuclei 9He[J]. Nuclear Physics Review, 2004, 21(3): 192-196. doi: 10.11804/NuclPhysRev.21.03.192

非束缚核9He的实验研究

doi: 10.11804/NuclPhysRev.21.03.192

Experimental Investigation of Unbound Nuclei 9He

  • 摘要: 简要介绍了目前有关非稳定核^9He的实验和理论研究现状.现代壳模型理论计算表明。He的基态自旋宇称为1/2^+,而不是1/2^-,即存在自旋宇称翻转现象.到目前为止,实验上虽然观测到了^9He的几个共振态,但还不能确认其基态的能量和自旋宇称值.利用新的实验技术——逆运动学弹性共振散射,对^9He核进行研究,给出了共振态的自旋宇称可能的取值范围.在ISOL型次级束装置上的实验有望能给出^9He核能级的精确测量.The status of theoretical and experimental investigations on unbound nucleus()~(9)He is briefly introduced. The results of modern shell model suggest that the ground state of~(9)He should be 1/2~(+) instead of 1/2~(- )as expected by the normal shell ordering. Therefore, it means that the parity inversion which was well known in~(11)Be occurs also in~(9)He ground state. Recently, some resonance states were observed in transfer reactions and final-state reaction, but their spin-parities cannot be exact...
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出版历程
  • 收稿日期:  1900-01-01
  • 修回日期:  1900-01-01
  • 刊出日期:  2004-09-20

非束缚核9He的实验研究

doi: 10.11804/NuclPhysRev.21.03.192

摘要: 简要介绍了目前有关非稳定核^9He的实验和理论研究现状.现代壳模型理论计算表明。He的基态自旋宇称为1/2^+,而不是1/2^-,即存在自旋宇称翻转现象.到目前为止,实验上虽然观测到了^9He的几个共振态,但还不能确认其基态的能量和自旋宇称值.利用新的实验技术——逆运动学弹性共振散射,对^9He核进行研究,给出了共振态的自旋宇称可能的取值范围.在ISOL型次级束装置上的实验有望能给出^9He核能级的精确测量.The status of theoretical and experimental investigations on unbound nucleus()~(9)He is briefly introduced. The results of modern shell model suggest that the ground state of~(9)He should be 1/2~(+) instead of 1/2~(- )as expected by the normal shell ordering. Therefore, it means that the parity inversion which was well known in~(11)Be occurs also in~(9)He ground state. Recently, some resonance states were observed in transfer reactions and final-state reaction, but their spin-parities cannot be exact...

English Abstract

王宏伟. 非束缚核9He的实验研究[J]. 原子核物理评论, 2004, 21(3): 192-196. doi: 10.11804/NuclPhysRev.21.03.192
引用本文: 王宏伟. 非束缚核9He的实验研究[J]. 原子核物理评论, 2004, 21(3): 192-196. doi: 10.11804/NuclPhysRev.21.03.192
WANG Hong-wei. Experimental Investigation of Unbound Nuclei 9He[J]. Nuclear Physics Review, 2004, 21(3): 192-196. doi: 10.11804/NuclPhysRev.21.03.192
Citation: WANG Hong-wei. Experimental Investigation of Unbound Nuclei 9He[J]. Nuclear Physics Review, 2004, 21(3): 192-196. doi: 10.11804/NuclPhysRev.21.03.192

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