Role of non-central interactions in neutron-rich nuclei

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In nuclear systems, it has been known that two non-central interaction, namely spin-orbit and tensor interactions, strongly act. The competition between their contributions plays an essential role in the structure change of nuclei as functions of excitation energy and proton/neutron numbers. In the present study, we proposed new models to discuss it and also combined conventional nuclear structure/reaction models and shown that, in the excited states of neutron-rich nuclei, a new structure, geometric configurations of clusters stabilized by neutrons, appears.