Aspects of φ-meson production in proton-proton collisions
نویسندگان
چکیده
We analyze near-threshold cross section data for the reaction pp→ppφ published by the DISTO collaboration and recent, still preliminary results presented by the ANKE Collaboration. We formulate a procedure to evaluate the OZI ratio at low energies by taking into account corrections from the kinematics and the final-state interaction. Combining the new data with the few measurements available at higher energies we give a limit for the OZI rule violation and estimate the possible contribution from a five-quark baryonic resonance coupled to the φp system. PACS. 13.60.Le Meson production – 14.20.Gk Baryon resonances with S=0 – 12.10.Qk Unification of couplings – 12.38.Qk Experimental tests
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φ-meson production in proton-proton collisions
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