Study of the reaction pbar p -> phi phi from 1.1 to 2.0 GeV/c
  A study has been performed of the reaction pbar p -> 4K using in-flight antiprotons from 1.1 to 2.0 GeV/c incident momentum interacting with a hydrogen jet target. The reaction is dominated by the production of a pair of phi mesons. The pbar p -> phi phi cross section rises sharply above threshold and then falls continuously as a function of increasing antiproton momentum. The overall magnitude of the cross section exceeds expectations from a simple application of the OZI rule by two orders of magnitude. In a fine scan around the xi/f_J(2230) resonance, no structure is observed. A limit is set for the double branching ratio B(xi -> pbar p) * B(xi -> phi phi) < 6e-5 for a spin 2 resonance of M = 2.235 GeV and Width = 15 MeV. 
C. Evangelista, A. Palano, D. Drijard, N. H. Hamann, R. T. Jones, B.   Mou\"ellic, S. Ohlsson, J. -M. Perreau, W. Eyrich, M....