The 2p2 1De resonance state of the helium atom embedded in model plasma environments is calculated using CI-type basis functions. The plasma effects have been taken care of by using the screened Coulomb potential obtained from the Debye model. The stabilization method has been used to extract resonance parameters. The resonance energy and width for the lowest 1De resonance for different screening parameters are reported.
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Kar et al. (2006) studied this question.
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