So, according to the Wikipedia article on the Born approximation, "It is accurate if the scattered field is small compared to the incident field on the scatterer." Perhaps this assumption does not apply for arbitrary ##V_0##? It's not immediately obvious to me why this would be the case though...
I'm preparing for an exam and I expect this or a similar question to be on it, but I'm running into problems with using the Born approximation and optical theorem for scattering off of a finite well.
1. Homework Statement
Calculate the cross sectional area σ for low energy scattering off of a...