Structural properties of the negative strontium ion: Binding energy and fine-structure splitting

被引：24

作者：

Andersen, HH ^{[1
]}

Petrunin, VV ^{[1
]}

Kristensen, P ^{[1
]}

Andersen, T ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI, INST SPECT, TROITSK 142092, RUSSIA

来源：

PHYSICAL REVIEW A | 1997年 / 55卷 / 04期

关键词：

D O I：

10.1103/PhysRevA.55.3247

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The binding energy and fine-structure splitting of the ground state of the Sr- (5s(2)5p P-2) ion have been measured by means of the laser photodetachment threshold technique combined with state-selective detection of neutral atoms using resonant ionization spectroscopy. We find binding energies of 32.17+/-0.03 meV (J=3/2) and 52.06+/-0.06 meV (J=1/2), yielding a fine-structure splitting of 19.89+/-0.07 meV. This represents an improvement of two orders of magnitude compared to the recent data based on a combination of laser photodetachment and accelerator mass spectroscopy [D. Berkovits et al., Phys. Rev. Lett. 75, 414 (1995)].

引用

页码：3247 / 3249

页数：3

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