Abstract
Consideration is given to the approximation in which an arbitrary potential is replaced by a separable potential. A method is presented which permits the construction of a rank- separable potential which has the property that the resulting matrix is exact on the energy shell and half off the energy shell at selected bound state and/or continuum energies. This construction yields a matrix that is correct off the energy shell in the vicinity of the on-shell points.
- Received 12 March 1973
DOI:https://doi.org/10.1103/PhysRevC.8.46
©1973 American Physical Society