Effects of Configuration Interaction on Intensities and Phase Shifts
- 15 December 1961
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 124 (6), 1866-1878
- https://doi.org/10.1103/physrev.124.1866
Abstract
The interference of a discrete autoionized state with a continuum gives rise to characteristically asymmetric peaks in excitation spectra. The earlier qualitative interpretation of this phenomenon is extended and revised. A theoretical formula is fitted to the shape of the resonance of He observed in the inelastic scattering of electrons. The fitting determines the parameters of the resonance as follows: ev, ev, . The theory is extended to the interaction of one discrete level with two or more continua and of a set of discrete levels with one continuum. The theory can also give the position and intensity shifts produced in a Rydberg series of discrete levels by interaction with a level of another configuration. The connection with the nuclear theory of resonance scattering is indicated.
Keywords
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