Measurement Of The (P)Over-Barp->Ksks Reaction For 0.6 To 1.9 Gev/C

The <(p)over bar p> --> KSKS --> 4 pi(+/-) cross section was measured at incident antiproton momenta between 0.6 and 1.9 GeV/c using the CERN Low Energy Antiproton Ring. This investigation was part of a systematic study of in-flight antiproton-proton annihilations into two-neutral-meson final states in a search for hadronic resonances. A coarse scan of the <(p)over bar p> --> KSKS cross section as a function of center-of-mass energy between 1.964 and 2.395 GeV/c(2) and a fine scan of the region surrounding the xi(2220) are presented. Upper limits on the product branching ratio B(xi --> <(p)over bar p>)x B(xi --> KSKS) are determined for a wide range of mass and width assumptions based on the nonobservation of the xi(2220). A rise in the <(p)over bar p> --> KSKS cross section is observed near 2.15 GeV/c(2), which is consistent with the f(2)(2150) resonance.