Mean field with tensor force and shell structure of exotic nuclei.
Mean field with tensor force and shell structure of exotic nuclei.
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DOI：
10.1103/physrevlett.97.162501
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发表时间：
2006-10
影响因子：
8.6
通讯作者：
T. Otsuka;T. Matsuo;D. Abe
中科院分区：
文献类型：
--
作者：
T. Otsuka;T. Matsuo;D. Abe
在平均场模型中引入张量力，使核壳层的演化既能描述稳定核，也能描述奇异核。除了张量力部分模拟介子交换外，该模型是Gogny模型的推广。丰中子奇异核的自旋轨道劈裂是稀有同位素束物理的主要问题之一。结果表明，张量力对这种分裂的影响大于或约等于中子皮对这种分裂的影响。我们将提出稳定和奇异核的预测与传统的结果和实验数据进行比较。
The tensor force is implemented into the mean-field model so that the evolution of nuclear shells can be described for exotic nuclei as well as stable ones. Besides the tensor-force part simulating the meson exchange, the model is an extension of the successful Gogny model. One of the major issues of rare-isotope beam physics is a reduced spin-orbit splitting in neutron-rich exotic nuclei. It will be shown that the effect of the tensor force on this splitting is larger than or about equal to the one due to the neutron skin. We will present predictions for stable and exotic nuclei with comparisons to conventional results and experimental data.