Abstract
The cut-off Coulomb potential (CCP) [Formula: see text], with [Formula: see text] a constant, is a radial interaction which is free from singularities in the whole radial range [Formula: see text]. The CCP is useful for modeling interacting systems when a Coulomb-like behavior is called for far from the source but with no singularity near it. The binding energies of the [Formula: see text] states of the CCP may be approximated. We further exhibit that the radiative corrections of phenomena such as the double Sudakov logarithm should be treated in the standard way.
Published Version
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