“…It is more natural to expect that there is a repulsion in the single particle potential near the origin, as for example relativistic Hartree calculations indicate, but not with an infinite behaviour near the origin. Thus, a potential of the Morse type [6][7][8][9][10][11][12] which, as is well known, has many applications in Physics, might be appropriate as a first approximation to the single-particle potential of a light nucleus. The disadvantage is that the Schrödinger eigenvalue problem can be solved analytically only for the s-states for this potential.…”