Momentum imaging of electrons and recoil ions from anion–neutral interactions in a cryogenic ion storage ring
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 simultaneo...
Saved in:
| Main Authors: | , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2025-03-01
|
| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.7.L012082 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | 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. |
|---|---|
| ISSN: | 2643-1564 |