Exact results on scattering by the potentialae−λr/r withλ=+0
A new, non-perturbative, coordinate space method is formulated to calculate the full and partial wave amplitudes for the potentialae−λr/r withλ=+0. The basic ingredients are a plausible use of the point Coulomb wave function up to moderate distances and a Wronskian identity to take care of the large distance behaviour of integrands.
Volume 94, 2020
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