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对于轻原子核,我们把两个声子相干的结构做为四个粒子集团的子结构α+,用同样的办法可以给出四个空穴集团的子结构β+。在此基础上,我们以16O及18O为例,研究了粒子团与空穴团之间的结构。发现它们之间存在着很强的斥力,因而最低的态是粒子团与空穴团松散开的结构。这样就从微观结构上解释了这种态的变形,并且这种结构对E2跃迁是相干加强的。为了进一步研究中重核的粒子关联结构,我们把L-S耦合的相干结构推广到赝L-S耦合的相干结构,并在j-j耦合表象中给出了表达式。应用此结构对56Ni附近的原子核,做了一点初步的分析。The coherent structures of two phonons have been proposed as the sub-structure α+ of four-particle clusters for the light nuclei. In the same way the sub-structure β+ of four-hole clusters can also be given. Based on this the sub-structures between particle clusters and hole clusters in 16O and 18O have been chosen as examples for our investigation. It is found that there is a very strong repulsive force between them. Therefore the loose structure between particle cluster and hole cluster is of the lowest energy state. In this way, the deformations of these states have been explained from the microscopic structures. Moreover, these strucrures can coherently strengthen the E2 transition. Further in order to study the particle correlation in the medium nuclei, the L-S coupling coherent structure is extended to the pseudo L-S coupling coherent structure and the expressions are given in the j-j coupling representation. Some preliminary analyses are made for the nuclei around 56Ni by using these structures.
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