Near-Threshold eta Meson Production in Proton-Proton Collisions

Abstract

The production of eta mesons has been measured in the proton-proton interaction close to the reaction threshold using the COSY-11 internal facility at the cooler synchrotron COSY. Total cross sections were determined for eight different excess energies in the range from 0.5 MeV to 5.4 MeV. The energy dependence of the total cross section is well described by the available phase-space volume weighted by FSI factors for the proton-proton and proton-eta pairs.

9 pages, 1 table, 5 figures

References in corpus (4)

• Comparison of eta and eta' production in the pp -> pp eta(eta') reactions near threshold
• Total Cross Section of the Reaction pp \to pK^+ΛClose to Threshold
• The Eta-Nucleon Scattering Length and Effective Range
• Higher Partial Waves in p+p->p+p+eta near Threshold

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