A program developed by Jordan Hulme and I to investigate the nucleon-nucleon interaction. We developed a C++ routine to model one- and two-pion exchange, using a simple Yukawa OPE model and a chiral TPE model. By comparison of partial-wave analy- ses of these models with empirical data from NN-OnLine we estimate the limiting distance of closest approach that can be modelled by pion exchange to be approximately 2-3fm.

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