分子态的电磁衰变
Electromagnetic Decay of Molecular States
摘要：
从变形结构的基础上$α$配置或更重的集群的电磁跃迁进行了讨论，绘制多粒子-多孔激发带和集群结构之间的联系。本文综述了轻核$^8$ Be、$^{10}$ Be、$^{12}$ C、$^{16}$ O、$^{18}$ O和重核$^{212}$ Po中E2和E1跃迁的增强。讨论了$^{36}$ Ar和$^{40}$ Ca中团簇结构与超形变组态之间的联系。基于较重子结构（如$^{12}$ C和$^{16}$ O）的集群状态所关注的是，共振辐射俘获反应$^{12}$ C的最新研究结果（$^{16}$ O，$γ$）$^{28}$ Si，特别是涉及低位置$^{28}$ Si 1 $^+$进料的强衰变模式ABMX和2个$^+$的T=1态。
英文摘要：
Electromagnetic transitions from deformed structures based on $α$ configurations or on heavier clusters are discussed, drawing the link between multiparticle-multihole excited bands and cluster structures. Enhanced E2 and E1 transitions are reviewed in the light nuclei, $^8$Be, $^{10}$Be, $^{12}$C, $^{16}$O, $^{18}$O and heavier ones like $^{212}$Po. Connections between cluster structures and superdeformed configurations in $^{36}$Ar and $^{40}$Ca are discussed. What the cluster states based on heavier substructures like $^{12}$C and $^{16}$O are concerned, recent results on the resonant radiative capture reaction $^{12}$C($^{16}$O,$γ$)$^{28}$Si are presented, in particular the strong decay mode involving the feeding of low-lying $^{28}$Si 1$^+$ and 2$^+$ T=1 states by enhanced M1 isovector transitions.
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