Ga原子亚稳态超精细结构常数及其同位素核矩的理论计算  

Theoretical calculation of hyperfine structure constants for the metastable state and nuclear moments of Ga isotopes

作　　者：汪青敏[1] 董晨钟[1] RITZSCHE Stephan 

机构地区：[1]甘肃省原子分子与功能材料重点实验室,物理与电子工程学院,西北师范大学,兰州730070 [2]Gesellschaft fur Schwerionenforschung,D-64291 Darmstadt,Germany

出　　处：《中国科学：物理学、力学、天文学》2012年第10期1048-1055,共8页Scientia Sinica Physica,Mechanica & Astronomica

基　　金：国家自然科学基金资助项目(批准号:10964010,11064012,91126007)

摘　　要：在相对论多组态Dirac-Fock(MCDF)论基础上,通过系统考虑电子关联效应以及相对论效应,获了与最近实验值符合很好71Ga亚稳态4s24p2P3/2超精细结构常数,并进而到了71Ga的磁偶极矩和电四极矩.在忽略场移效应对Ga原子亚稳态超精细结构影响情况下,进一步给出了Ga原子其他同位素67,69,72-79,81Ga磁偶极矩和电四极矩,与已有实验结果相比,有着很好一致性.The hyperfine structure （hfs） constants for the metastable state 4s24p 2p3/2 of 71Ga were calculated using the GRAS- P2K package based on the multiconfiguration Dirac-Fock （MCDF） method. A good agreement of the hfs constants for the metastable state was found between calculations and experiment. Based on these calculations, the nuclear moments of 71Ga were obtained. By neglecting the small field shift effect for Ga, the nuclear moments for 67＇69＇72-79＇81Ga were derived, the present results for nuclear moments were in good agreement with experimental values.

关 键 词：超精细结构常数 磁偶极矩 电四极矩 电子关联 

分 类 号：O562.6[理学—原子与分子物理]