Photoproduction of phi(1020) mesons on the proton at large momentum transfer

Details Photoproduction of phi(1020) mesons on the proton at large momentum transfer Photoproduction of phi(1020) mesons on the proton at large momentum transfer

2000-06-16

arxiv.org/abs/hep-ex/0006022v1

Phys.Rev.Lett.85:4682-4686,2000

Physics

High Energy Physics

High Energy Physics - Experiment

5 pages; 7 figures

Scientific paper

10.1103/PhysRevLett.85.4682

The cross section for $\phi$ meson photoproduction on the proton has been measured for the first time up to a four-momentum transfer -t = 4 GeV^2, using the CLAS detector at the Thomas Jefferson National Accelerator Facility. At low four-momentum transfer, the differential cross section is well described by Pomeron exchange. At large four-momentum transfer, above -t = 1.8 GeV^2, the data support a model where the Pomeron is resolved into its simplest component, two gluons, which may couple to any quark in the proton and in the $\phi$.

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