Level inversion in kaonic nuclei and the high-density nuclear equation of state
Level inversion in kaonic nuclei and the high-density nuclear equation of state
复制标题
高子核能级反演和高密度核状态方程
DOI：
10.1016/j.physletb.2019.06.007
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发表时间：
2019-08-10
影响因子：
4.4
通讯作者：
Wei，Si-Na
中科院分区：
文献类型：
--
作者：
Yang，Rong-Yao;Jiang，Wei-Zhou;Wei，Si-Na
由于核多体问题的高度非线性，任何核模型都很难同时确定饱和性质和高密度状态方程。本文首次提出利用轻K介子核的特殊性质来表征饱和性质与高密度状态方程之间的关系。在一系列相对论平均场模型下，发现轻K介子核中2S 1/2和1D 5/2轨道之间的能级反转是这种特殊性质。这种反演可以作为一个理论实验室，将饱和密度下的不可压缩性和超常密度下的状态方程同时分组。
It is very difficult for any nuclear model to pin down the saturation property and high-density equation of state (EOS) simultaneously because of high nonlinearity of the nuclear many-body problem. In this work, we propose, for the first time, to use the special property of light kaonic nuclei to characterize the relation between saturation property and high-density EOS. With a series of relativistic mean-field models, this special property is found to be the level inversion between orbitals 2 S 1/2 and 1 D 5/2 in light kaonic nuclei. This level inversion can serve as a theoretical laboratory to group the incompressibility at saturation density and the EOS at supra-normal densities simultaneously.