Relativistic Mean Field Theory for Deformed Nuclei with Pairing Correlations
Relativistic Mean Field Theory for Deformed Nuclei with Pairing Correlations
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DOI：
10.1143/ptp.110.921
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发表时间：
2003-06
影响因子：
--
通讯作者：
L. Geng;H. Toki;S. Sugimoto;J. Meng
中科院分区：
文献类型：
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作者：
L. Geng;H. Toki;S. Sugimoto;J. Meng
在BCS近似下，我们发展了具有配对关联的形变核的相对论平均场描述。对于费米面接近非束缚态阈值的核，对关联的处理需要特别注意。考虑到这一点，我们使用一个δ函数相互作用的配对相互作用拿起那些状态的波函数集中在核区域，并采用标准BCS近似的单粒子态从变形的RMF理论。我们将RMF + BCS方法应用于Zr同位素，得到了从质子滴线到中子滴线的结合能和核半径的较好描述。
We develop a relativistic mean field (RMF) description of deformed nuclei with pairing correlations in the BCS approximation. The treatment of the pairing correlations for nuclei whose Fermi surfaces are close to the threshold of unbound states needs special attention. With this in mind, we use a delta function interaction for the pairing interaction to pick up those states whose wave functions are concentrated in the nuclear region and employ the standard BCS approximation for the single-particle states obtained from the RMF theory with deformation. We apply the RMF + BCS method to the Zr isotopes and obtain a good description of the binding energies and the nuclear radii of nuclei from the proton drip line to the neutron drip line.