论文部分内容阅读
用Skyrme Hartree Fock模型系统地研究了40 Ca到70 Ca到Ca同位素偶偶核的基态性质及其同位旋依赖性 .讨论了结合能、均方根半径、密度分布随同位旋的变化 ,研究了壳效应对结合能、双中子分离能S2n及和表面弥散厚度的影响 .结果表明壳效应在S2n、表面弥散厚度中表现得非常明显 .质子均方根半径Rrms随相对中子数I=(N -Z) /A的变化满足Rrms=35(1 +αI + βI2 )rpZ1/ 3.离心位垒对核表面以外的密度分布有很大影响 .
The ground state properties and their isospin dependence of the 40 Ca to 70 Ca to Ca isotopes even nuclei have been studied systematically using the Skyrme Hartree Fock model. The changes of the binding energies, root mean square radii and density distributions with isospin have been studied. Effect on the binding energies, the neutron separation energy S2n and the surface diffusion thickness.The results show that the shell effect is very obvious in S2n, the surface diffusion thickness.The rms of proton rms with the relative neutron number I = (N -Z) / A satisfies Rrms = 35 (1 + αI + βI2) rpZ1 / 3. The centrifugal barrier has a great influence on the density distribution outside the nuclear surface.