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

The JETSET collaboration Evangelista, C. ; Palano, A. ; Drijard, D. ; et al.
Phys.Rev.D 57 (1998) 5370-5381, 1998.
Inspire Record 467575 DOI 10.17182/hepdata.49550

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.

3 data tables

No description provided.

No description provided.

Fine scan of the PHI PHI cross section.