Observation of an Electric Quadrupole Transition in a Negative Ion: Experiment and Theory

被引：6

作者：

Walter, C. W. ^{[1
]}

Spielman, S. E. ^{[1
]}

Ponce, R. ^{[1
]}

Gibson, N. D. ^{[1
]}

Yukich, J. N. ^{[2
]}

Cheung, C. ^{[3
]}

Safronova, M. S. ^{[3
,4
,5
]}

机构：

[1] Denison Univ, Dept Phys & Astron, Granville, OH 43023 USA

[2] Davidson Coll, Phys Dept, Davidson, NC 28035 USA

[3] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA

[4] Natl Inst Stand & Technol, Joint Quantum Inst, College Pk, MD 20742 USA

[5] Univ Maryland, College Pk, MD 20742 USA

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 126卷 / 08期

关键词：

Absorption transitions - Electric quadrupole transition - Electric quadrupoles - Electron interaction - Forbidden transitions - Relativistic effects - Theoretical approach - Transition properties;

D O I：

10.1103/PhysRevLett.126.083001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The first direct experimental observation of an electric quadrupole (E2) absorption transition between bound states of an atomic negative ion has been made. The transition was observed in the negative ion of bismuth by resonant (1 + 1) photon detachment from Bi- via P-3(2) -> P-3(0) excitation. The E2 transition properties were completely independently calculated using a hybrid theoretical approach to account for the strong multilevel electron interactions and relativistic effects. The experimental and ab initio theoretical results are in excellent agreement, providing valuable new insight into this complex system and forbidden transitions in negative ions more generally.

引用

页数：6

共 38 条

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