The differential cross section for the elastic scattering of 500-eV electrons from helium has recently been measured. The extended-polarization potential method used in our previous work is here applied at 500 eV and yields cross sections in good agreement with experiment. In addition, the explicit formulas used in this and our previous work for approximating the higher angular momentum phase shifts are displayed.
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Labahn et al. (1969) studied this question.
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