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Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity. II

Phys. Rev. 124, 246 – Published 1 October 1961
Y. Nambu and G. Jona-Lasinio


Continuing the program developed in a previous paper, a "superconductive" solution describing the proton-neutron doublet is obtained from a nonlinear spinor field Lagrangian. We find the pions of finite mass as nucleon-antinucleon bound states by introducing a small bare mass into the Lagrangian which otherwise possesses a certain type of the γ5 invariance. In addition, heavier mesons and two-nucleon bound states are obtained in the same approximation. On the basis of numerical mass relations, it is suggested that the bare nucleon field is similar to the electron-neutrino field, and further speculations are made concerning the complete description of the baryons and leptons.

DOI: http://dx.doi.org/10.1103/PhysRev.124.246

  • Received 10 May 1961
  • Published in the issue dated October 1961

© 1961 The American Physical Society

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Authors & Affiliations

Y. Nambu and G. Jona-Lasinio*

  • Enrico Fermi Institute for Nuclear Studies and Department of Physics, University of Chicago, Chicago, Illinois

  • *Present address: Istituto di Fisica dell'Universita, Roma, and Istituto Nazionale di Fisica Nucleare, Sezione di Roma, Italy.


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