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Aspects of φ-meson production in proton-proton collisions

  • A. Sibirtsev
  • J. HaidenbauerEmail author
  • U. -G. Meißner
Nuclear Structure and Reactions

Abstract.

We analyze near-threshold cross-section data for the reaction ppppφ 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. We also demonstrate and discuss the effect of a possible contribution from a five-quark baryonic resonance coupled to the φp system on the ppppφ cross-section and the φp and pp invariant mass spectra.

PACS.

13.60.Le Meson production 14.20.Gk Baryon resonances with S = 0 12.10.Kt Unification of couplings; mass relations 12.38.Qk Experimental tests 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2006

Authors and Affiliations

  • A. Sibirtsev
    • 1
  • J. Haidenbauer
    • 2
    Email author
  • U. -G. Meißner
    • 1
    • 2
  1. 1.Helmholtz-Institut für Strahlen- und Kernphysik (Theorie)Universität BonnBonnGermany
  2. 2.Institut für Kernphysik (Theorie)Forschungszentrum Jülich GmbHJülichGermany

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