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李韵秋, 李聪博, 郑云, 李天晓, 吴晓光, 洪锐, 吴鸿毅, 郑敏, 赵子豪, 贺子阳, 李金泽, 李广顺, 郭成宇, 倪磊, 周振翔, 贺创业, 刘伏龙, 周小红, 柳敏良, 张玉虎, 王守宇, 王硕, 竺礼华. 近球形核94Nb的高自旋态研究[J]. 原子核物理评论, 2024, 41(1): 250-255. DOI: 10.11804/NuclPhysRev.41.2023CNPC10
引用本文: 李韵秋, 李聪博, 郑云, 李天晓, 吴晓光, 洪锐, 吴鸿毅, 郑敏, 赵子豪, 贺子阳, 李金泽, 李广顺, 郭成宇, 倪磊, 周振翔, 贺创业, 刘伏龙, 周小红, 柳敏良, 张玉虎, 王守宇, 王硕, 竺礼华. 近球形核94Nb的高自旋态研究[J]. 原子核物理评论, 2024, 41(1): 250-255. DOI: 10.11804/NuclPhysRev.41.2023CNPC10
Yunqiu LI, Congbo LI, Yun ZHENG, Tianxiao LI, Xiaoguang WU, Rui HONG, Hongyi WU, Min ZHENG, Zihao ZHAO, Ziyang HE, Jinze LI, Guangshun LI, Chengyu GUO, Lei NI, Zhenxiang ZHOU, Chuangye HE, Fulong LIU, Xiaohong ZHOU, Minliang LIU, Yuhu ZHANG, Shouyu WANG, Shuo WANG, Lihua ZHU. High-spin States in near Stable Nucleus 94Nb[J]. Nuclear Physics Review, 2024, 41(1): 250-255. DOI: 10.11804/NuclPhysRev.41.2023CNPC10
Citation: Yunqiu LI, Congbo LI, Yun ZHENG, Tianxiao LI, Xiaoguang WU, Rui HONG, Hongyi WU, Min ZHENG, Zihao ZHAO, Ziyang HE, Jinze LI, Guangshun LI, Chengyu GUO, Lei NI, Zhenxiang ZHOU, Chuangye HE, Fulong LIU, Xiaohong ZHOU, Minliang LIU, Yuhu ZHANG, Shouyu WANG, Shuo WANG, Lihua ZHU. High-spin States in near Stable Nucleus 94Nb[J]. Nuclear Physics Review, 2024, 41(1): 250-255. DOI: 10.11804/NuclPhysRev.41.2023CNPC10

近球形核94Nb的高自旋态研究

  • 摘要: 通过重离子熔合蒸发反应82Se(18O, p5n)94Nb布居了94Nb的高自旋态,实验中使用的18O束流由中国原子能科学研究院的HI-13串列加速器提供,束流能量为82和88 MeV。在前人工作的基础上发现了13条新的γ跃迁并调整了部分能级的摆放位置,将94Nb的自旋推至24(−),激发能至10.6 MeV,结合DCO比值和线极化测量对部分能级的自旋、宇称进行了指定。在质子π(1f5/2, 2p3/2, 2p1/2, 1g9/2)和中子(2p1/2, 1g9/2, 2d5/2, 1g7/2)空间下将94Nb的能级结构与壳模型计算结果进行了比较,并探讨了94Nb的中子质子激发机制。

     

    Abstract: High spin states of 94Nb have been studied with the 82Se(18O, p5n)94Nb fusion evaporation reaction at beam energy of 82 and 88 MeV. The experiment was performed at the HI-13 tandem accelerator of the China Institute of Atomic Energy. The previously reported level schemes of 94Nb have been extended and modified up to an excitation energy of 10.6 MeV and a spin and parity of 24(−) with 13 new γ-transitions. Based on DCO ratios and linear polarization measurements, spin-parity have been assiged up to the highest level observed. The level structures in 94Nb have been interpreted in terms of the shell model calculations performed in the configuration space π(1f5/2, 2p3/2, 2p1/2, 1g9/2 ) for the protons and ν(2p1/2, 1g9/2, 1g7/2, 2d5/2 ) for the neutrons, and the neutron proton excitation mechanism of 94Nb was discussed.

     

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