Autodetachment of Diatomic Carbon Anions from Long-Lived High-Rotation Quartet States
We show that strong molecular rotation drastically modifies the autodetachment of C_{2}^{-} ions in the lowest quartet electronic state a^{4}Σ_{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.
Authors
- Florian Grussie (ORCID: https://orcid.org/0000-0002-1553-3622)
- Milan Ončák (ORCID: https://orcid.org/0000-0002-4801-3068)
- O. Novotný (ORCID: https://orcid.org/0000-0003-2520-343X)
- Jürgen Göck
- Viviane C. Schmidt (ORCID: https://orcid.org/0000-0002-2808-2760)
- A. Wolf (ORCID: https://orcid.org/0000-0003-1198-9013)
- H. Kreckel (ORCID: https://orcid.org/0000-0003-0511-0738)
- C. Krantz (ORCID: https://orcid.org/0000-0003-1727-8319)
- K. Blaum (ORCID: https://orcid.org/0000-0003-4468-9316)
- R. von Hahn
- M. Grieser (ORCID: https://orcid.org/0000-0002-5066-2550)
- Roman Čurı́k (ORCID: https://orcid.org/0000-0002-2367-0715)
- K. Spruck
- S. George (ORCID: https://orcid.org/0000-0001-5702-2567)
Institutions
- Universität Innsbruck (AT)
- Czech Academy of Sciences, J. Heyrovský Institute of Physical Chemistry (CZ)
- Max Planck Institute for Nuclear Physics (DE)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2024-10-31
- DOI
- https://doi.org/10.1103/physrevlett.133.183001
- Citations
- 3
- Primary Topic
- Advanced Chemical Physics Studies
- Type
- article
- Field-Weighted Citation Impact
- 1.01
Funders
- Grantová Agentura České Republiky
- Max-Planck-Gesellschaft
- Universität Innsbruck