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A simple five-parameter wave function is constructed and the positions and widths of the lowest two compound states of the (e,H) system are calculated for both singlet and triplet spin multiplicities with zero total angular momentum. Very good agreement with previous calculations using more elaborate trial functions is obtained because particular attention is paid to the asymptotic form of the wave function. A method adopted from the double-perturbation theory for the systematic improvement of the calculation of widths and shifts of compound states is presented in an Appendix.
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Chen et al. (1968) studied this question.
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