A separable approximation to a local square-well potential is examined. For s-wave scattering it is shown that a rank-2 separable potential can be constructed which fits the square-well phase shifts below 300 MeV, and also reproduces the off-shell T-matrix elements over the entire region where the T matrix is, itself, appreciable.
No takes yet. Share an insight, caveat, or question.
Ernst et al. (1973) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: