1997/07/28 by C. Evangelista, A. Palano, D. Drijard +51
Physics and Astronomy · #Antiproton #Branching fraction #Center of mass (relativistic) #Hadron #High-Energy Particle Collisions Research #Large Hadron Collider #Meson #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Resonance (particle physics) #hep-ex
paper · pdf · doi:10.1103/physrevd.56.3803
published as Phys.Rev.D56:3803-3810,1997 · 11 pages, Latex, to be published in Phys Rev D (Oct 97)
arxiv created 1997/07/28 · openalex publication_date 1997/10/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The pp\ensuremath→KSKS\ensuremath→4\ensuremathπ^\ifmmode±\else\textpm\fi 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 pp\ensuremath→KSKS cross section as a function of center-of-mass energy between 1.964 and 2.395 GeV/c2 and a fine scan of the region surrounding the \ensuremathξ(2220) are presented. Upper limits on the product branching ratio B(\ensuremathξ\ensuremath→pp)\ifmmode×\else\texttimes\fiB(\ensuremathξ\ensuremath→KSKS) are determined for a wide range of mass and width assumptions based on the nonobservation of the \ensuremathξ(2220). A rise in the pp\ensuremath→KSKS cross section is observed near 2.15 GeV/c2, which is consistent with the f2(2150) resonance.