$φ$-meson production in proton-proton collisions

Details $φ$-meson production in proton-proton collisions $φ$-meson production in proton-proton collisions

1999-04-14

arxiv.org/abs/nucl-th/9904040v1

Phys.Rev. C60 (1999) 055209

Physics

Nuclear Physics

Nuclear Theory

21 pages, 3 figures, submitted to Phys.Rev.C

Scientific paper

10.1103/PhysRevC.60.055209

The production of $\phi$-mesons in proton-proton collisions is investigated within a relativistic meson-exchange model of hadronic interactions. The experimental prerequisites for extracting the $NN\phi$ coupling strength from this reaction are discussed. In the absence of a sufficient set of data, which would enable an accurate determination of the $NN\phi$ coupling strength, we perform a combined analysis, based on some reasonable assumptions, of the existing data for both $\omega$- and $\phi$-meson production. We find that the recent data from the DISTO collaboration on the angular distribution of the $\phi$ meson indicate that the $NN\phi$ coupling constant is small. The analysis yields values for $g_{NN\phi}$ that are compatible with the OZI rule.

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