A Partial Wave Analysis of Antiproton-Proton Annhilation Above Threshold for phi-phi Meson Production in the JETSET Experiment
James J Marie
University of Connecticut

The JETSET experiment (PS202) conducted at CERN was designed to search for gluonic resonances in the mass range between 2.1 and 2.4 GeV using the channel p pbar -> phi phi. This channel is OZI suppressed, thus any observed enhancement of the cross section beyond expections of the OZI rule could indicate possible resonating gluonic degrees of freedom. In fact, the measured cross section is two orders of magnitude beyond OZI expections. Subsequent spin-parity analyses have suggested a resonance with a dominant J=2 spin component and a parity of +1. Recently, another spin-parity analysis has been performed. This analysis includes the possibility of coherent interference with a scaler background. It will be shown that the overall fit quality improves when coherent interference is included. A dominant spin component of J=2 still emerges but a J=4 component is also present.