A Remark on the Strong Coupling Approximation in Meson-nucleon Scattering

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Abstract
Tomonaga’s intermediate coupling theory of the meson-nucleon scattering is applied to the case of the strong meson-nucleon coupling, using the simplified model of the charged vector longitudinal mesons interacting with a heavy nucleon. The remarkable feature in the strong coupling limit is that, besides the ordinary levels of the nucleon, its isobars and their excited states, there exist another kind of the excited levels (the “higher levels” defined in Sec. 2) which play an important role for the scattering problem. Our result agrees with the former conclusions of the Wentzel’s strong coupling treatment. Comparison with the case of the intermediate coupling region is discussed.

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