Abstract
We report on multiconfiguration Breit-Pauli calculations for the photorecombination of Ti4+ ions. Through a detailed comparison with the Test Storage Ring measurements of Schippers , we quantify the interference effects for the broad, asymmetric, near-threshold, highly correlated 3p(5)3d(2)(F-2) resonances. We also discuss the enhanced field ionization effects on recombined 3p(6)nl Rydberg states. This is due to the perturbation of the below-threshold tails of two of the broad 3p(5)3d(2)(F-2) resonances, giving rise to a "forced autoionization" phenomenon, increasing the field ionization effects. By accounting for interference for the lowest n=3,4 resonances, and field effects as n ->infinity, excellent agreement between our computed results and the experimental photorecombination spectrum is obtained.
Original language | English |
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Pages (from-to) | 012703-1-012703-17 |
Journal | Physical Review A |
Volume | 79 |
Issue number | 1 |
DOIs | |
Publication status | Published - Jan 2009 |
Keywords
- autoionisation
- configuration interactions
- field ionisation
- ion recombination
- positive ions
- resonant states
- Rydberg states
- titanium