Abstract
We study the connection between exchange-degeneracy breaking and multiquark states within the framework of a highly constrained dual approach. We show that (baryonium) states emerge at the daughter trajectory level as a consequence of small exchange-degeneracy breaking in the meson-meson system () and larger exchange-degeneracy breaking of the baryon trajectories in the meson-baryon system (). The states are coupled weakly to external mesons in proportion to the breaking parameter . Assuming couplings to channels are strong, as determined by duality with normal mesons in the system, consistency requires , thereby relating the larger breaking of baryon trajectories to the violation of the Okubo-Zweig-Iizuka-type rule for . It is shown that exotic baryon states, , also emerge from this scheme at the daughter level and that dibaryons will appear at the second daughter level.
- Received 23 August 1978
DOI:https://doi.org/10.1103/PhysRevD.19.3349
©1979 American Physical Society