论文标题
α粒子形成和核中的聚类
Alpha-particle formation and clustering in nuclei
论文作者
论文摘要
核次定位函数已经使用了十年来研究核中α粒子的形成，该函数通过提供单个位置中给定自旋的核子的量度来研究核的形成。然而，与核的核次密度相比，解释的差异仍然存在。为了更好地理解核酸定位函数的各自作用以及簇状态或α-末期机制中α-粒子形成中的密度，使用能量密度函数的分析近似和显微镜计算。核次定位函数被证明可以测量抗中心效应，并且对α-粒子本身的紧凑度不敏感。它探测了四个可能的四个核子的空间重叠的纯度（旋转，等体）状态。此外，密度提供了有关α粒子簇的紧凑性的信息。在α粒子发射的情况下，还分析了核子定位函数和密度的各自作用。更普遍地，提供了评估核国家α-群集预测的标准。
The nucleonic localization function has been used for a decade to study the formation of alpha-particles in nuclei, by providing a measure of having nucleons of a given spin in a single place. However, differences in interpretation remain, compared to the nucleonic density of the nucleus. In order to better understand the respective role of the nucleonic localization function and the densities in the alpha-particle formation in cluster states or in alpha-decay mechanism, both an analytic approximation and microscopic calculations, using energy density functionals, are undertaken. The nucleonic localization function is shown to measure the anti-centrifugal effect, and is not sensitive to the level of compactness of the alpha-particle itself. It probes the purity of the spatial overlap of four nucleons in the four possible (spin, isospin) states. The density provides, in addition, information on the compactness of an alpha-particle cluster. The respective roles of the nucleonic localization function and the density are also analyzed in the case of alpha-particle emission. More generally, criteria to assess the prediction of alpha-cluster in nuclear states are provided.
