Abstract
The variational method is developed to attack the scattering of low energy electrons by polyatomic molecules. The form chosen for a trial function is F ( r )= F s h o r t ( r )+ F l o n g ( r ), where F s h o r t ( r ) is the linear combination of quadratically integrable functions with their centers at constituent atoms of the molecule, r the position vector of the scattered electron, and F l o n g ( r ) chosen so as to include distortion of the scattered wave caused by long range forces is smoothly connected to the free particle wave function. The applicability of this theory is tested by a numerical example, in which the calculation is made for the elastic scattering of electrons by the static field of H 2 in the two-center coordinate system and the results are compared with the Hara's (J. Phys. Soc. Japan 27 (1969) 1009).
Published Version
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