125Cs核中g7/2与d5/2转动带的顺排行为
lignment properties of the g7/2 and d5/2 bands in 125Cs
利用在束核谱学实验技术布居了Z=55 的奇质子核125Cs 的高自旋态，测量了伽玛射线间的符合关系，建立了更加完整的125Cs的能级结构纲图，其中基于g7/2和d5/2组态的转动带被推高到带交叉区域，并观测到了它们与两个3准粒子带的交叉。在推转壳模型框架下讨论了这两个3准粒子带的组态，并建议它们分别与长椭和扁椭的原子核形状相关联。在扁椭带中，一对h11/2中子顺排，而在长椭带中，首先是h11/2质子顺排，并紧随着h11/2中子顺排。
High-spin states in the Z=55 125Cs isotope have been investigated by means of standard in-beam gamma-ray spectroscopy. Gamma-gamma coincidences were measured and a more complete level scheme of 125Cs is constructed. The bands based on the g7/2 and d5/2 configurations at low spins are extended up to spins where they are crossed by two high-lying three-quasiparticle bands. Possible configurations of the three-quasiparticle bands are discussed in the framework of cranked-shell-model calculations and are suggested to be associated with prolate and oblate shapes. In the prolate band, the alignment is assigned to h11/2 neutrons, whereas in the oblate band the alignment of h11/2 protons followed by the alignment of h11/2 neutrons are suggested.
马英君、孙吉
原子能技术基础理论物理学
原子核物理125Cs高自旋态形状共存
nuclear physics125Cshigh-spin stateshape coexistence
马英君,孙吉.125Cs核中g7/2与d5/2转动带的顺排行为[EB/OL].(2016-06-17)[2025-08-24].http://www.paper.edu.cn/releasepaper/content/201606-753.点此复制
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