  The Omega-bar/Omega ratio originating from string decays is predicted to be
larger than unity in proton-proton interaction at SPS energies. The anti-omega
dominance increases with decreasing beam energy. This surprising behavior is
caused by the combinatorics of quark-antiquark production in small and low-mass
strings. Since this behavior is not found in a statistical description of
hadron production in proton-proton collisions, it may serve as a key observable
to probe the hadronization mechanism in such collisions.
