Complex-coordinate calculation ofDresonances in two-electron systems
- 1 September 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 44 (5) , 2895-2899
- https://doi.org/10.1103/physreva.44.2895
Abstract
Feshbach-type D resonances in two-electron systems, Z=2–10, have been investigated using the method of complex rotation. These states lie below the n=2 and 3 thresholds of hydrogenic systems. Wave functions containing up to 1230 Hylleraas functions have been used, giving accurate results for positions and widths. Comparisons between various calculations are given.
Keywords
This publication has 16 references indexed in Scilit:
- Doubly excited states populated in collisions of O8+ions with He and H2at 1.24 keV amu-1Journal of Physics B: Atomic, Molecular and Optical Physics, 1990
- Spline methods for resonances in photoionisation cross sectionsJournal of Physics B: Atomic, Molecular and Optical Physics, 1990
- Complex-coordinate calculation ofresonances using Hylleraas functionsPhysical Review A, 1990
- Phase shifts and resonances for electron scattering bybelow theN=2thresholdPhysical Review A, 1986
- The method of complex coordinate rotation and its applications to atomic collision processesPhysics Reports, 1983
- The variational method in atomic scatteringPhysics Reports, 1978
- Ejected electron spectroscopy of autoionizing states excited by low energy electron impactJournal of Physics B: Atomic and Molecular Physics, 1975
- Calculation of autoionization of He andusing the projection-operator formalismPhysical Review A, 1975
- Autoionization States of He andPhysical Review A, 1972
- Symmetric Euler-Angle Decomposition of the Two-Electron Fixed-Nucleus ProblemReviews of Modern Physics, 1964