DO (P)OVER-BAR-P ANNIHILATIONS AT REST CHOOSE THE EIGHTFOLD WAY

Dynamical selection rules observed in ppBAR annihilation at rest are linked to relations between SU(3) invariant amplitudes. The rhopi puzzle, the KKBAR suppression in P wave, and the unexplained production rates of pia2(1320) are shown to be manifestions of one SU(3) amplitude ratio. The dynamical selection rules observed in the production of strange mesons lead to symmetries in SU(3) amplitudes. We conjecture that these symmetries reflect the underlying quark-gluon dynamic. It is shown that the contribution of annihilation diagrams to important annihilation channels like rho0pi0 or etaomega is small or vanishes. Hence rearrangement must play an important role. The use of SU(3) relations in the context of NNBAR interactions has been critized since the small rate for strangeness production seems to imply very large SU(3) breaking effects. The weakness of this argument is pointed out.