用相对论密度相关哈特利近似研究有限核的性能  

Relativistic Density-dependent Hartree Approach for Finite Nuclei

作　　者：张秀荣[1] 郭文录[1] 

机构地区：[1]华东船舶工业学院数理系,江苏镇江212003

出　　处：《河北大学学报（自然科学版）》2004年第1期28-31,共4页Journal of Hebei University(Natural Science Edition)

基　　金：江苏省高校自然科学研究课题(02KJD140002)

摘　　要：对有限核的相对论哈特利近似(Hartree近似)作了进一步的发展,把相对论Hartree近似拉氏函数中的耦合常数构造成密度相关的,利用了核物质的相对论BHF结果,计算了16O和40Ca的结合能和均方根半径,与实验符合得很好.同时,也计算了来自于电子散射的电荷密度,进而讨论了与核物质性能有关的核子-核子相互作用的依赖性.A relativistic Hartree approach for finite nuclei is developed,where the coupling constants of the relativistic Hartree-Lagrangian are made density dependent and are obtained from the relativistic Brueckner-Hartree-Fock(RBHF) results of Nuclear matter. The Calculated results on binding energies and root mean square radii of^(16)O and^(40)C_a agree very well with experiment. The chargy densities from electron scattering are also calculated and their dependence on the nucleon- nucleon interaction is discussed in relation with nuclear matter properties.

关 键 词：有限核 RDDH近似 耦合常数 

分 类 号：O571.2[理学—粒子物理与原子核物理]