Fine Structure and Ionization Energy of the 1s2s2p 4P State of the Helium Negative Ion He-

被引：3

作者：

Wang, Liming ^{[1
]}

Li, Chun ^{[2
]}

Yan, Zong-Chao ^{[3
,4
]}

Drake, G. W. F. ^{[5
]}

机构：

[1] Henan Normal Univ, Dept Phys, Xinxiang 453007, Henan, Peoples R China

[2] Nanjing Univ, Dept Math, Nanjing 210093, Jiangsu, Peoples R China

[3] Univ New Brunswick, Dept Phys, Fredericton, NB E3B 5A3, Canada

[4] Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Peoples R China

[5] Univ Windsor, Dept Phys, Windsor, ON N9B 3P4, Canada

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 113卷 / 26期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ELECTRON-AFFINITY; VALUES; ATOMS;

D O I：

10.1103/PhysRevLett.113.263007

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The fine structure and ionization energy of the 1s2s2p P-4 state of the helium negative ion He- are calculated in Hylleraas coordinates, including relativistic and QED corrections up to O(alpha(4)mc(2)) , O(mu/M)alpha(4)mc(2)), O(alpha(5)mc(2)), and O(mu/M)alpha(5)mc(2)). Higher order corrections are estimated for the ionization energy. A comparison is made with other calculations and experiments. We find that the present results for the fine structure splittings agree with experiment very well. However, the calculated ionization energy deviates from the experimental result by about 1 standard deviation. The estimated theoretical uncertainty in the ionization energy is much less than the experimental accuracy.

引用

页数：5

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