The effect of Debye plasma on the
resonance states in the scattering of electron from helium atom has been investigated within the framework of the stabilization method. The interactions among the charged particles in Debye plasma have been modelled by Debye–Huckel potential. The
excited state of the helium atom has been treated as consisting of a
ionic core plus an electron moving around. The interaction between the core and the electron has then been modelled by a model potential. It has been found that the background plasma environment significantly affects the resonance states. To the best of our knowledge, such an investigation of
resonance states of the electron–helium system embedded in Debye plasma environment is the first reported in the literature.
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