Two-center molecular states in9B,9Be,10Be, and10B
Two-center molecular states in9B,9Be,10Be, and10B
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9B、9Be、10Be 和 10B 中的二中心分子态
DOI：
10.1007/s002180050010
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
W. Oertzen
中科院分区：
文献类型：
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作者：
W. Oertzen
本文讨论了质量为9和10的原子核中的分子态，这些原子核由两个α粒子和一个或两个价核子（质子或中子）组成。讨论了~（10）Be中存在双中心二聚体的激发态和~（10）B中相应的（p+9 Be）共振态。在各种重离子碰撞中，后者在p +9 Be通道的末态相互作用中作为反常（非统计）布居被观察到。随着10 Be中基于α α势的双中心态（二聚体）和两个核子的定域结合的建立，我们假设了10 Be * 中加入（α2n）结构后存在更多的扩展结构（多聚体）。一般来说，根据分子状态，聚集成α粒子和核子预计会发生在激发能量接近这些子结构的阈值时，类似于池田对α粒子核的聚集规则。讨论了丰中子核成团性质的后果。
The molecular states in the mass 9 and 10 nuclei, which consist of two α-particles plus one or two valence nucleons (protons or neutrons) are discussed. Arguments for the existence of two-center dimers as excited states in10Be and corresponding resonances (p+9Be) in10B are given. The latter states are observed as anomalous (non statistical) population in the final state interactions in thep+9Be channel in various heavy ion collisions. With the establishment of two-center states (dimers) based on the αα-potential and a localized binding via two nucleons in10Be, the existence of more extended structures (multimers) by adding (α2n) structures to10Be* is postulated. Generally clustering intoα-particles and nucleons in terms of molecular states is expected to occur at excitation energies close to the threshold for these substructures in analogy to the clustering rules of Ikeda forα-particle nuclei. Consequences to clustering properties of neutron rich nuclei are discussed.