We analyze near-threshold cross section data for the reaction pp->pp phi 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 phi-p system.
@article{arxiv.nucl-th/0512055,
title = {Aspects of phi-meson production in proton-proton collisions},
author = {A. Sibirtsev and J. Haidenbauer and U. -G. Meißner},
journal= {arXiv preprint arXiv:nucl-th/0512055},
year = {2009}
}