Analysis of 6 He Coulomb breakup in the complex scaling method
Analysis of 6 He Coulomb breakup in the complex scaling method
复制标题
复标度法中 6 He 库仑破裂分析
DOI：
10.1103/physrevc.63.054313
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发表时间：
2001
影响因子：
3.1
通讯作者：
K. Ikeda
中科院分区：
文献类型：
--
作者：
T. Myo;K. Katō;S. Aoyama;K. Ikeda
The transition strength for Coulomb breakup of ${}^{6}\mathrm{He}$ into ${}^{4}\mathrm{He}+n+n$ three-body unbound states is studied in the framework of the complex scaling method (CSM). We propose a method to analyze the three-body unbound states in which CSM is utilized to decompose the three-body transition strengths into resonance and continuum components. We calculate the contributions of $E1$ and $E2$ transitions, not only from three-body resonances, but also from two-body ${\mathrm{``}}^{5}\mathrm{He}+n\mathrm{''}$ and three-body ${\mathrm{``}}^{4}\mathrm{He}+n+n\mathrm{''}$ continuum states. From the calculated strength distributions, we discuss the characteristic structures of ${}^{6}\mathrm{He}$ in the positive energy region, and also the Coulomb breakup mechanism of ${}^{6}\mathrm{He}.$ We show that the two-body ${\mathrm{``}}^{5}\mathrm{He}+n\mathrm{''}$ component is dominant in the total Coulomb breakup cross section.
The transition strength for Coulomb breakup of ${}^{6}\mathrm{He}$ into ${}^{4}\mathrm{He}+n+n$ three-body unbound states is studied in the framework of the complex scaling method (CSM). We propose a method to analyze the three-body unbound states in which CSM is utilized to decompose the three-body transition strengths into resonance and continuum components. We calculate the contributions of $E1$ and $E2$ transitions, not only from three-body resonances, but also from two-body ${\mathrm{``}}^{5}\mathrm{He}+n\mathrm{''}$ and three-body ${\mathrm{``}}^{4}\mathrm{He}+n+n\mathrm{''}$ continuum states. From the calculated strength distributions, we discuss the characteristic structures of ${}^{6}\mathrm{He}$ in the positive energy region, and also the Coulomb breakup mechanism of ${}^{6}\mathrm{He}.$ We show that the two-body ${\mathrm{``}}^{5}\mathrm{He}+n\mathrm{''}$ component is dominant in the total Coulomb breakup cross section.