Study of the reaction pbar p -> phi phi from 1.1 to 2.0 GeV/c

Details Study of the reaction pbar p -> phi phi from 1.1 to 2.0 GeV/c Study of the reaction pbar p -> phi phi from 1.1 to 2.0 GeV/c

1998-02-18

arxiv.org/abs/hep-ex/9802016v1

Phys.Rev.D57:5370-5381,1998

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages, 13 figures, 2 tables, Latex. To be published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.57.5370

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.

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