Abstract
Feshbach-type $^{1,3}$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.
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More From: Physical review. A, Atomic, molecular, and optical physics
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