Autodetachment of Diatomic Carbon Anions from Long-Lived High-Rotation Quartet States

被引：0

作者：

Schmidt, Viviane C. ^{[1
]}

Curik, Roman ^{[2
]}

Oncak, Milan ^{[3
]}

Blaum, Klaus ^{[1
]}

George, Sebastian ^{[1
]}

Goeck, Juergen ^{[1
]}

Grieser, Manfred ^{[1
]}

Grussie, Florian ^{[1
]}

von Hahn, Robert ^{[1
]}

Krantz, Claude ^{[1
]}

Kreckel, Holger ^{[1
]}

Novomy, Oldrich ^{[1
]}

Spruck, Kaija ^{[1
]}

Wolf, Andreas ^{[1
]}

机构：

[1] Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany

[2] ASCR, J Heyrovsky Inst Phys Chem, Dolejskova 3, Prague 18223, Czech Republic

[3] Leopold Franzens Univ Innsbruck, Inst Ionenphys & Angew Phys, Technikerstr 25-3, A-6020 Innsbruck, Austria

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 133卷 / 18期

关键词：

ELECTRON-MOLECULE COLLISIONS; ASSOCIATIVE DETACHMENT; ULTRAHIGH-RESOLUTION; C-2; SPECTROSCOPY; TRANSITION; RESONANCE; SPECTRUM; BEHAVIOR; COMPLEX;

D O I：

10.1103/PhysRevLett.133.183001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that strong molecular rotation drastically modifies the autodetachment of C-2 ions in the lowest quartet electronic state a4 Sigma & thorn;u . In the strong-rotation regime, levels of this state only decay by a process termed "rotationally assisted" autodetachment, whose theoretical description is worked out based on the nonlocal resonance model. For autodetachment linked with the exchange of six rotational quanta, the results reproduce a prominent, hitherto unexplained electron emission signal with a mean decay time near 3 ms, observed on stored C-2 ions from a hot ion source.

引用

页数：7

共 8 条

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