Article

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

06/2000; DOI:doi:10.1103/PhysRevLett.85.4682
Source: arXiv

ABSTRACT 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 $\phi$. Comment: 5 pages; 7 figures

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### Keywords

$\phi$ meson photoproduction

-t

CLAS detector

cross section

data support

differential

four-momentum transfer -t

large four-momentum transfer

low four-momentum transfer

Thomas Jefferson National Accelerator Facility