Zweig, G.; An SU(3) Model for Strong Interaction Symmetry and its Breaking II
Reprinted in Development in the Quark Theory of Hadrons, A Reprint Collection V.1: 1964-1978, ed. D. B. Lichtenberg and S. P. Rosen, Hadronic Press, Inc., Monamtum, Mass. (1980) 22.
Both mesons and baryons are constructed from a set of three fundamental particles called aces. The aces break up into an isospin doublet and singlet. Each ace carries baryon number 1/3 and is fractionally charged. SU(3) (but not the Eightfold Way) is adopted as a higher symmetry for the strong interactions. The breaking of this symmetry is assumed to be universal, being due to mass differences among the aces. Extensive space-time and group theoretic structure is then predicted for both mesons and
baryons, in agreement with existing experimental information. Quantitative speculations are presented concerning resonances that have not as yet been definitively classified into representation of SU(3). A weak interaction theory based on right and left handed aces is used to predict rates for S = 1 baryon leptonic decays. An experimental search for the aces is suggested.
Related references More (earlier) information appears in G. Zweig, preprint CERN-8419-TH-401 (1964);
More (later) information appears in G. Zweig, preprint CALT-68-805 (1980);
Introduction of aces (quarks) as fundamental building blocks for hadrons. II.