Exotic cluster structure in light nuclei
Although the shell and the mean field pictures have been
well established for the nuclear structure,
the cluster structure is also one of the most important
aspects of the nuclear structure, especially in lighter region.
Firstly, I will mention about the basic idea and history of
the cluster model, and it will be discussed
how the cluster structure appear in nuclei.
For example, Ikeda's threshold rule and inversion double structure
are important signals of the cluster structure.
Next, I will talk about the relation between the cluster
model and other models. Here, how the cluster model space
can be interpreted in terms of the shell model picture will be shown.
However, there are states which are not well described by the
mean field picture, and what kind of excited states are specific
cluster structure will be clarified.
Finally, recent important topics, which is the cluster
structure in light neutron-rich nuclei will be discussed.
The appearance of the cluster rotational band structure, and
disappearance of the shell structure will be discussed
in relation with the alpha-alpha structure of
the core nucleus.