Precision measurement of the lifetime of the 1s2s 3S1 metastable level in heliumlike O6+

被引：43

作者：

Lopez-Urrutia, JRC ^{[1
]}

Beiersdorfer, P

Savin, DW

Widmann, K

机构：

[1] Lawrence Livermore Natl Lab, Dept Phys & Space Technol, Livermore, CA 94550 USA

[2] Columbia Univ, Dept Phys, New York, NY 10025 USA

[3] Columbia Univ, Columbia Astrophys Lab, New York, NY 10025 USA

来源：

PHYSICAL REVIEW A | 1998年 / 58卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.58.238

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The lifetime of the 1s2s S-3(1) level of the He-like O6+ ion has been measured using the Electron Beam Ion Trap in the magnetic trapping mode. A value of 956(-4)(+5): ps is found, which corresponds to a radiative transition rate of 1046(-5)(+4) s(-1) for the magnetic dipole transition to the 1s(2) S-1(0) ground state. This value is in excellent agreement with recent theoretical predictions and distinguishes among different treatments of negative energy states and correlation in multiconfiguration Dirac-Fock calculations.

引用

页码：238 / 241

页数：4

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