Chew-low model and the potential description of the 0N interaction

The inverse scattering problem for the Chew-Low model is solved and the solution is used to construct three different forms for the off-shell N T matrix. The three forms differ in their treatment of the nucleon pole and the crossing cut. One of the forms is shown to be equivalent to a separable potential model with an energy dependent strength. The analysis gives some insight into the question of the range of the N interaction. NUCLEAR REACTIONS Inverse problem for Chew-Low model; relation between field theory and potential descriptions of N interaction.