Er,Yb和Hf同位素的基态占有率（英文）

发布时间：2018-03-20 17:41

本文选题：基态占有率　切入点：对力强度　出处：《原子核物理评论》2017年01期 　论文类型：期刊论文

【摘要】：应用严格求解的Nilsson平均场加推广对力模型,在同时考虑质子-质子和中子-中子间对力相互作用的情况下,对稀土区的~(152-164)Er,~(154-166)Yb和~(156-168)Hf核素的结合能、奇偶能差、低激发态转动惯量等基态性质进行系统的统一描述。通过计算结果与实验数值比较分析显示,对力相互作用在阐明以上核素能谱的基态性质中起到了关键的作用。应用拟合上述物理量所确定的模型参数,对~(156-162)Yb核素基态中价核子配成角动量J=0,1,···,12的价核子对占有率的计算结果显示,配成角动量为偶数价核子对的占有率远远高于配成角动量为奇数价核子对的占有率,其数值结果揭示了配成角动量为S,D和G的价核子对在所考虑的核素基态性质中占主导地位。
[Abstract]:By using the strictly solved Nilsson mean field plus generalized pair force model, under the condition of considering the interaction between proton-proton and neutron-neutron at the same time, the binding energy, even and odd energies of the rare earth region (152-164U, 154-166H _ f) and 156-168H _ f nuclides are different, the difference of the odd and even energies is obtained. The properties of the ground state such as the rotational inertia of low excited state are described in a unified way. The comparison between the calculated results and the experimental data shows that, The para-force interaction plays a key role in elucidating the ground state properties of the energy spectrum of nuclides above. The calculation results of the valence nucleon pair occupancy of the valence nucleons in the ground state of Yb nuclear nuclides J ~ (0), 路路~ (12) show that the occupation rate of even valence nucleons matched with angular momentum is much higher than that of odd valence nucleons matched with angular momentum. The numerical results show that the valence nucleon pairs with angular momentum of S _ (D) and G are dominant in the ground state properties of the nuclides under consideration.
【作者单位】：辽宁师范大学物理与电子技术学院;路易斯安那州立大学物理与天文系;
【基金】：National Natural Science Foundation of China(11405080,11375080,11675071)~~
【分类号】：O571

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