Experimental studies of Os-:: Observation of a bound-bound electric dipole transition in an atomic negative ion

被引：74

作者：

Bilodeau, RC ^{[1
]}

Haugen, HK

机构：

[1] McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S 4M1, Canada

[2] McMaster Univ, Dept Engn Phys, Hamilton, ON L8S 4L8, Canada

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.85.534

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first experimental studies of Os- reveal the presence of two very strong resonances. One state is a narrow shape resonance lying only 3.52(12) meV above the ground state detachment threshold, while the other is bound by 11.48(12) meV. Convincing evidence that these states have odd parity is presented, making Os- the only known atomic negative ion with bound states of opposite parity. Additionally, the binding energies for the Os- ground state (F-4(9/2)e) and first excited state (F-4(7/2)e) are measured to be 1.07780(12) eV and 0.553(3) eV, respectively.

引用

页码：534 / 537

页数：4

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