On a Composite Model for the New Particles

Concrete Quarks - The Beginning of the End

“…(a) For the strong interactions, hadrons decay when their constituents separate and initiate the formation of decay products (Zweig's rule, 15 Figs. 10 and 11).…”

“…Graphically, when a meson decays into other mesons, it decays in all ways the deuces present can be connected, each connection having the same amplitude. The decay amplitude is proportional to the sum of these amplitudes, each amplitude weighted by the 15 Gell-Mann enjoyed using Rosner's and Harari's term, the "twig rule" (twig is derived from the German word zweig, meaning "branch"). Zweig's rule differs from that of Okubo's or Iizuki's because it not only says what is forbidden, but also what is allowed, and by how much.…”

“…This unsurmountable problem was to haunt Sakata's 1956 extension [15] of their work. He augmented the proton and neutron with the newly discovered Λ to construct K mesons out of pairs like the Λ and antineutron (Λn), but the binding mechanism was still obscure.…”

a new symmetry possibly realizing in hadron spectroscopy

“…| S , | α(β) and | A mean the full-symmetric, α(β)-type partial symmetric and full anti-symmetric subspace WF, respectively. The intrinsic parity operation is given byP = Π 3 i=1 γ (i) 4 , that is, the parity of (E (+) , G (+) , F (+) ) BW spinors are (+, −, +) and those of (E (−) , G (−) , F (−) ) BW spinors are (−, +, −). The symmetry properties of ground state light-quark baryon WF and their level structures thus determined are summarized in Table IV.…”

“…In 1956 Sakata 4) , extending the framework of F.Y. model, proposed a composite model for the new particles (mesons and baryons), taking Sakata triplet S(P, N, Λ) as the fundamental constituents.…”