Abstract
The possibility of bound states in a velocity-dependent potential of the Kisslinger type, such as that used to describe the low-energy pion-nucleus interaction, is discussed. It is shown in a specific example that, for a real potential, the number of bound states is finite and their binding energies are real, in contradiction with general results claimed by other authors.NUCLEAR REACTIONS Pion-nucleus optical potential; nuclear bound states of pions in nuclei; velocity-dependent potential.
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