Novel Type of Cluster Structure in Neutron-Rich Nuclei

由于今年是该研究项目的最后一年，我们总结了到去年为止所做的研究，并为未来提出了一些新的工作。（1）^ Be的研究<12>。与其他Be同位素一样，基态和低激发态都可以用分子轨道图很好地描述。但是有些激发态有中子，可以用原子轨道图（2）N=20幻数的消失来描述。(to 2 p ~ 2 h结构对~（10）Mg和~（10）Ne的基态起主导作用<32><30>。在某些激发态中<30>，4p 4 h结构占优势，与α-^<16>O结构有关。（3）^<32>S. (to超形变激发态具有^<16>O-^<16>O分子结构。（4）再现了~（44）Ti（已提交）超形变带与α-^ Ca相共存的研究<40>。

Since this year is the last year of the research project, we summarized the studies made until last year and also promoted some new works for the future.(1)Study of ^<12>Be. (already published)Like other Be isotopes, the ground and low-lying states are well described by molecular orbit picture. But some excited states have neutrons described well by the atomic-orbital picture(2)Vanishing of the N=20 magic number. (to be published)Neutron 2p2h structure is dominant for the ground states of ^<32>Mg and ^<30>Ne. In some excited states of ^<30>Ne, 4p4h structure is dominant which is related to α-^<16>O structure.(3)Study of ^<32>S. (to be published)Super deformed excited has ^<16>O-^<16>O molecular structure.(4)Study of 44Ti (submitted)Coexistence of super deformed bands and α-^<40>Ca stales is reproduced.