The Pion-Nucleon S-Wave Scattering, the Structure of the Nucleon and the Composite Model of Baryons and Mesons

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概要

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• It seems impossible that the pion-nucleon s-wave scattering can be explained in the frame of meson theory. It is suggested from the experimental result that the static pion-nucleon potential with the appropriate isospin dependence has the possibility of explaining this phenomenon. The following characteristics of Fermi-Yang's composite model of pions are noticed : (i) Pions are bound states of one nucleon and one antinucleon. (ii) The attractive short range static potential exists between nucleon and antinucleon, and the repulsive short range static potential between nucleon and nucleon. (iii) The numbers of nucleons and antinucleons are independently conserved. Using this model, we obtain the static potential between a pion and a nucleon. When the interaction type is vector, the static pion-nucleon potential with the charge dependebce τ-ω is given. In this case, the pion-nucleon force in the state I=1/2 becomes attractive, therefore the bound states of two nucleons and one antinucleon may be possible. We consider this bound state of total isospin one half and spin one half as the nucleon core. Then the possibility of understanding the extension and other mysterious properties of the nucleon core exists. This model is extended to every baryon and meson.

• 理論物理学刊行会の論文
• 1959-09-25

著者

• Ataka Yasusi

  Department Of Physics Kinki University

関連論文

• The Composite Model of Mesons as a Limit of Meson Theory
• Remarks on the Correspondence between Field Theories with Yukawa and Fermi Interactions
• Some Remarks on Fermi-Yang Model
• Soluble Examples in Field Theory with Fermi Interactions
• The Pion-Nucleon S-Wave Scattering, the Structure of the Nucleon and the Composite Model of Baryons and Mesons

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