We have investigated the influence of Debye plasmas on resonance states in electron–hydrogen scattering using highly correlated exponential wavefunctions in the framework of the stabilization method. Resonance parameters (resonance positions and widths) below the N = 2 H threshold are reported for selected screening parameters. Critical values of the screening parameters are reported from which S, P, D Feshbach resonances are transformed to shape resonances. Behaviour of the resonance widths obtained from this work as a function of screening parameters is in agreement with the recently reported work for weaker screening, but not in close agreement with those for stronger screening.
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Kar et al. (2010) studied this question.
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