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RMF理论对N=60同中子核素形状演化的研究

周健虹 郭健友 方向正

周健虹, 郭健友, 方向正. RMF理论对N=60同中子核素形状演化的研究[J]. 原子核物理评论, 2008, 25(1): 15-19. doi: 10.11804/NuclPhysRev.25.01.015
引用本文: 周健虹, 郭健友, 方向正. RMF理论对N=60同中子核素形状演化的研究[J]. 原子核物理评论, 2008, 25(1): 15-19. doi: 10.11804/NuclPhysRev.25.01.015
ZHOU Jian-hong, GUO Jian-you, FANG Xiang-zheng. Systematic Analysis of Shape Evolution for N=60 Isotonic Chain in Relativistic Mean|field Model[J]. Nuclear Physics Review, 2008, 25(1): 15-19. doi: 10.11804/NuclPhysRev.25.01.015
Citation: ZHOU Jian-hong, GUO Jian-you, FANG Xiang-zheng. Systematic Analysis of Shape Evolution for N=60 Isotonic Chain in Relativistic Mean|field Model[J]. Nuclear Physics Review, 2008, 25(1): 15-19. doi: 10.11804/NuclPhysRev.25.01.015

RMF理论对N=60同中子核素形状演化的研究

doi: 10.11804/NuclPhysRev.25.01.015
详细信息
    通讯作者: 周健虹

Systematic Analysis of Shape Evolution for N=60 Isotonic Chain in Relativistic Mean|field Model

  • 摘要: 利用形变约束的相对论平均场理论系统研究了N=60同中子核素的形状演化, 给出了这些核的基态结合能、 形变、 单粒子能级以及形变激发的位能曲线。 通过比较和分析发现, 随着质子数的增加, N=60同中子核的基态形变向轴对称形变方向演化, 114Xe和116Ba位于球形U(5)和轴对称SU(3)的过渡区, 存在形状相变的临界点结构, 这些结果与实验观测一致。 The shape phase transition between spherical U(5)and axially SU(3)deformed nuclei is investigated systemically for N=60 isotonic chain by the constrained relativistic mean|field theory with the interactions NL3 and PK1. The values of bind energy and quadruple deformation β2 are calculated and a good agreement is obtained as compared with the experiments. By examining the potential energy curve and single particle spectra obtained with this microscopic approach, the possible critical point nuclei with the structure of shape phase transition are suggested to be 114Xe and 116Ba, which is favored by the experiments.
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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:  2008-03-20

RMF理论对N=60同中子核素形状演化的研究

doi: 10.11804/NuclPhysRev.25.01.015
    通讯作者: 周健虹

摘要: 利用形变约束的相对论平均场理论系统研究了N=60同中子核素的形状演化, 给出了这些核的基态结合能、 形变、 单粒子能级以及形变激发的位能曲线。 通过比较和分析发现, 随着质子数的增加, N=60同中子核的基态形变向轴对称形变方向演化, 114Xe和116Ba位于球形U(5)和轴对称SU(3)的过渡区, 存在形状相变的临界点结构, 这些结果与实验观测一致。 The shape phase transition between spherical U(5)and axially SU(3)deformed nuclei is investigated systemically for N=60 isotonic chain by the constrained relativistic mean|field theory with the interactions NL3 and PK1. The values of bind energy and quadruple deformation β2 are calculated and a good agreement is obtained as compared with the experiments. By examining the potential energy curve and single particle spectra obtained with this microscopic approach, the possible critical point nuclei with the structure of shape phase transition are suggested to be 114Xe and 116Ba, which is favored by the experiments.

English Abstract

周健虹, 郭健友, 方向正. RMF理论对N=60同中子核素形状演化的研究[J]. 原子核物理评论, 2008, 25(1): 15-19. doi: 10.11804/NuclPhysRev.25.01.015
引用本文: 周健虹, 郭健友, 方向正. RMF理论对N=60同中子核素形状演化的研究[J]. 原子核物理评论, 2008, 25(1): 15-19. doi: 10.11804/NuclPhysRev.25.01.015
ZHOU Jian-hong, GUO Jian-you, FANG Xiang-zheng. Systematic Analysis of Shape Evolution for N=60 Isotonic Chain in Relativistic Mean|field Model[J]. Nuclear Physics Review, 2008, 25(1): 15-19. doi: 10.11804/NuclPhysRev.25.01.015
Citation: ZHOU Jian-hong, GUO Jian-you, FANG Xiang-zheng. Systematic Analysis of Shape Evolution for N=60 Isotonic Chain in Relativistic Mean|field Model[J]. Nuclear Physics Review, 2008, 25(1): 15-19. doi: 10.11804/NuclPhysRev.25.01.015

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