On the Interaction of Elementary Particles

Yukawa’s 1935 On the Interaction of Elementary Particles, published in Proceedings of the Physico-Mathematical Society of Japan, is one of the program’s working technical references. Cited in Book IV (Categorical Microcosm), Part 5, Chapter Hadrons and Nuclei, where the program draws on it in the context of “The pion mediates the residual strong force between nucleons: V_Yukawa(r) = -g^2 e^-m_π rr This Yukawa potential governs nuclear binding at inter-nucleon distances r 1 fm.”