Resonance positions and widths of doubly excitedions associated withN=3, 4, and 5thresholds
- 1 March 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 35 (5), 2035-2043
- https://doi.org/10.1103/physreva.35.2035
Abstract
Some doubly excited autoionizing states of heliumlike nitrogen ions converging on the N=3, N=4, and N=5 hydrogenic thresholds are calculated by a method of complex-coordinate rotation. Hylleraas-type wave functions are used for L=0 and L=1 resonances, and products of Slater-orbital-type wave functions with expansion lengths up to 323 terms for L≥2. Results can be used for experimental references in the recently identified doubly excited autoionization states of ions in double-electron charge-transfer collision experiments between ions and helium atoms.
Keywords
This publication has 14 references indexed in Scilit:
- Position and widths of autoionising states in the helium isoelectronic sequence above the N=2 continuumJournal of Physics B: Atomic and Molecular Physics, 1984
- Autoionisation of N5+(nln'l') with n=2,3,4 and n'⩾n measured by electron spectrometry in collisions of N7+with He and H2, at 4.9 keV amu-1Journal of Physics B: Atomic and Molecular Physics, 1984
- A new Bohr-Rydberg spectrum of two-electron statesJournal of Physics B: Atomic and Molecular Physics, 1983
- Two-electron capture into autoionising states of N5+(3l3l') and O5+(1s3l3l') in collisions of N7+and O5+with HeJournal of Physics B: Atomic and Molecular Physics, 1982
- A New Class of Atomic States: The 'Wannier-ridge' ResonancesAustralian Journal of Physics, 1982
- Electron-impact excitation of hydrogenic ionsPhysical Review A, 1981
- Complex-coordinate calculations for doubly excited states of two-electron atomsPhysical Review A, 1981
- Ro-vibrational collective interpretation of supermultiplet classifications of intrashell levels of two-electron atomsPhysical Review A, 1980
- Autoionisation states of helium isoelectric sequence below the n=3 hydrogenic thresholdsJournal of Physics B: Atomic and Molecular Physics, 1979
- Resonances in 1s-2s and 1s-2p collision strengths for electron impact excitation of hydrogenic ionsJournal of Physics B: Atomic and Molecular Physics, 1978