| Title: |
Spatial and temporal evolution of ionic fragments produced by deep core-level ionization |
| Authors: |
Travnikova, Oksana; Liu, Ji-Cai; Püttner, Ralph; Jänkälä, Kari; Sisourat, Nicolas; Marchenko, Tatiana; Guillemin, Renaud; Céolin, Denis; Piancastelli, Maria Novella; Gel'mukhanov, Faris; Simon, Marc; Kimberg, Victor |
| Publication Year: |
2026 |
| Collection: |
FU Berlin: Refubium |
| Subject Terms: |
Autoionization & Auger processes; Interatomic & molecular potentials; Molecular dissociation; ddc:530 |
| Description: |
Multiply charged molecules fragment under Coulomb repulsion, leaving characteristic fingerprints in ensuing electronic decay. Using K-shell ionization of HCl as a benchmark, we identify metastable intermediates that persist to internuclear separations beyond 100 a.u., where weakened Coulomb interactions enable the emergence of narrow atomic lines, while short-lived states decay at smaller separations, producing broad, red-shifted backgrounds. This work provides a previously missing dynamical description of coupled electronic and nuclear evolution in the Coulomb fragmentation regime. |
| Document Type: |
article in journal/newspaper |
| File Description: |
11 Seiten; application/pdf |
| Language: |
English |
| DOI: |
10.17169/refubium-51695 |
| DOI: |
10.1103/6bdq-fwrd |
| Availability: |
https://refubium.fu-berlin.de/handle/fub188/51959; https://doi.org/10.17169/refubium-51695; https://doi.org/10.1103/6bdq-fwrd |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Accession Number: |
edsbas.207369F |
| Database: |
BASE |