论文标题
从实际互动开始描述群集状态的挑战
Challenge for describing the cluster states starting with realistic interaction
论文作者
论文摘要
我们旨在描述核系统的群集状态，从现实的相互作用开始，这是现代核理论的挑战。在这里，通过使用阻尼因子来处理现实相互作用的短距离相关性，并且可以将所得相互作用应用于光核的簇结构。我们从现实的相互作用（G3R）开始，然后以这种方式进行转换，然后将$α$ - $α$的能量曲线与现象学相互作用的结果进行比较。发现两个$α$之间的有吸引力的效果也不够，即使有一个缺陷因子进行短期排斥，也讨论了有限的三体术语的必要性。使用这个三体术语，可以再现基态的共振能量和两个$α$的散射相移。同样，从四个$α$阈值中的$^{16} $ o的绑定能也合理地复制了。用$^{12} $ c和$^{16} $ O的三个和四个$α$簇的线性链结构通过这种交互进行计算，并与包括密度函数理论在内的常规方法的结果进行了比较。
We aim to describe the cluster states of nuclear systems starting with a realistic interaction, which is a challenge of modern nuclear theories. Here, the short-range correlation of realistic interaction is treated by employing the damping factor, and the resultant interaction can be applied to the cluster structure of light nuclei. We start with a realistic interaction (G3RS) and transform it in this way, and the $α$-$α$ energy curve is compared with the results of phenomenological interactions. The attractive effect between two $α$'s is found to be not enough even with a damping factor for the short-range repulsion, and the necessity of a finite-range three-body term is discussed. With this three-body term, the resonance energy of the ground state and the scattering phase shift of two $α$'s can be reproduced. Also, the binding energy of $^{16}$O from the four $α$ threshold is reasonably reproduced. The linear-chain structure of three and four $α$ clusters in $^{12}$C and $^{16}$O are calculated with this interaction and compared with the results of the conventional approaches including the density functional theories.
