论文标题
群集动力学和单粒子相关的一致描述
Consistent description for cluster dynamics and single-particle correlation
论文作者
论文摘要
群集动力学和单粒子相关是同时处理$ {}^{}^{12} \ Mathrm {C} $的基态的描述。反对称的准准群集模型（AQCM）的最新开发使得可以从$α$ clusters型号中生成$ JJ $偶联的壳壳模型波函数。可以很容易地估算出$ JJ $耦合壳模式结构的群集动力和竞争。在本研究中，我们进一步包括单粒子激发的效果。考虑了两粒子两孔激发态的混合。在标准群集模型分析中，并不总是考虑单粒子激发，并且由于配对样相关性，两粒子两孔状态被发现有助于降低基态。通过扩展AQCM，所有基础状态都是在同一基础上准备的，并且它们是根据发电机坐标方法（GCM）的框架进行了超级封码的。
Cluster dynamics and single-particle correlation are simultaneously treated for the description of the ground state of ${}^{12} \mathrm{C} $. The recent development of the antisymmetrized quasi cluster model (AQCM) makes it possible to generate $jj$-coupling shell-model wave functions from $α$ clusters models. The cluster dynamics and the competition with the $jj$-coupling shell-model structure can be estimated rather easily. In the present study, we further include the effect of single-particle excitation; the mixing of the two-particle-two-hole excited states is considered. The single-particle excitation is not always taken into account in the standard cluster model analyses, and the two-particle-two-hole states are found to strongly contribute to the lowering of the ground state owing to the pairing-like correlations. By extending AQCM, all of the basis states are prepared on the same footing, and they are superposed based on the framework of the generator coordinate method (GCM).
