Abstract
Some regularities of doubly excited negative-ion resonances can be identified by comparison of properties along isoionic sequences. We discuss in particular the b and c resonances of Ne− and their analogs in neighboring elements, for which a variety of experimental and theoretical data are available. The analysis shows that the “grandparent” model of these resonances provides an appropriate angular-momentum coupling scheme but that some essential dynamical features are not associated with distinctive properties of an excited electron pair.
© 1987 Optical Society of America
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