Quantum interference of K capture in energetic Ge31+(1s)−Kr collisions
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
We have measured characteristic K x rays in coincidence with the scattered particles from collisions of hydrogenlike Ge ions with Kr atoms. The ions were first accelerated to 8.6 MeV/amu, post-stripped to H-like charge state, and decelerated to around 2.5 MeV/amu. From the measurements the probabilities for K-shell to K-shell charge transfer as a function of collision impact parameters were obtained. The probabilities show an onset of oscillations which are interpreted as quantum interference between the K-shell to K-shell electron transfer amplitudes in two spatially separated coupling regions in the incoming and outgoing parts of the collision. The probabilities of K-shell vacancy distribution created by the collision are calculated within a relativistic independent electron model using the coupled-channel approach with atomlike Dirac-Fock-Sturm orbitals. A reasonable agreement between the theoretical results and the experimental data is found.
Details
Original language | English |
---|---|
Pages (from-to) | 1-7 |
Number of pages | 7 |
Journal | Physical Review A |
Issue number | 042701 |
Publication status | Published - 2020 |
Peer-reviewed | Yes |
Keywords
Keywords
- QED starker Felder, Elektronendynamik in Schwerionenkollisionen, QED of strong fields, electrondynamics during heavy-ion collisions