Low Energy Reactions of Halo Nuclei in a Three-Body Model
Low Energy Reactions of Halo Nuclei in a Three-Body Model
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三体模型中晕核的低能反应
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
K. Yabana
中科院分区：
文献类型：
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作者：
K. Yabana
在一个三体模型中，将入射粒子描述为晕中子与核核的弱结合态，从理论上研究了晕核的低能核反应。采用含时波包方法求解三体薛定谔方程，计算反应几率。不同内部哈密顿量下的数值结果表明，反应机制强烈地依赖于核和靶核的单粒子结构。当中子被紧密束缚在弹丸中时，绝热动力学被发现是重要的。对于具有晕环结构的弱束缚弹丸，由于中子的加入，聚变几率会降低。
Low energy nuclear reactions of nuclei with halo structure are theoretically studied in a three· body model in which the projectile is described as the weakly bound state of the halo neutron and core nucleus. A time·dependent wave packet method is employed to solve the three·body Schrodinger equation and to calculate reaction probabilities. Numerical results with various internal Hamiltonians reveal that the reaction mechanisms depend strongly on the single particle structures of the core and target nuclei. The adiabatic dynamics is found to be important when the neutron is bound tightly in the projectile. For a weakly bound projectile with halo structure, the fusion probability is found to decrease due to the addition of a neutron.