稀土区对关联经验参数公式的研究

Studies on Different Pairing Parameters in Rare-earth Nuclei

在相对论平均场理论框架下,采用不同对关联的参数公式对Ce,Gd和Yb稀土区同位素链进行了计算和研究。理论计算表明:尽管采用能隙经验参数公式和对力强度经验参数公式在能否表现出原子核的壳结构上有所区别,但具体计算的其它物理量(如结合能、双中子分离能等)趋向一致,都能很好地反映原子核的基态性质。

In the framework of relativistic mean field （RMF）theory, we use BCS approximation to calculate Ce, Gd and Yb isotopic chains with different pairing parameters. And found whether they can show shell structure are different, but other physical quantities are similar by using different kinds of pairing parameters, both can correctly reproduce the experimental binding energies, two-neutron separation energy and potential curves.