Abstract
We have momentum-analyzed electrons and recoil ions in triple coincidence with projectiles neutralized in 300-keV Si-+Ar collisions. The experiment was performed at a cryogenic ion storage ring with an in-ring reaction microscope. Differential momentum distributions for detachment with simultaneous target ionization were obtained. At more than 15% of the detachment-only rate the ionization rate is surprisingly large. A correlated two-electron channel is found to be dominant. This is also unexpected because the projectile energy is well below the threshold for the correlated process.
Recommended Citation
F. Herrmann and W. Zhang and M. Schulz and D. V. Chicharro and A. Dorn and M. Grieser and F. Grussie and H. Kreckel and O. Novotny and F. Trost and A. Wolf and T. Pfeifer and C. D. Schröter, "Momentum Imaging of Electrons and Recoil Ions from Anion-neutral Interactions in a Cryogenic Ion Storage Ring," Physical Review Research, vol. 7, no. 1, article no. L012082, American Physical Society, Jan 2025.
The definitive version is available at https://doi.org/10.1103/PhysRevResearch.7.L012082
Department(s)
Physics
Publication Status
Open Access
International Standard Serial Number (ISSN)
2643-1564
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2025 The Authors, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution 4.0 License.
Publication Date
01 Jan 2025
Comments
Max-Planck-Gesellschaft, Grant None