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

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

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.

  • Received 10 May 1961

DOI:https://doi.org/10.1103/PhysRev.124.246

©1961 American Physical Society

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.

See Also

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

Y. Nambu and G. Jona-Lasinio
Phys. Rev. 122, 345 (1961)

Nobel Prize—Particle Physics Gets a Break

Michael Schirber
Phys. Rev. Focus 22, 13 (2008)

References

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Issue

Vol. 124, Iss. 1 — October 1961

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