A search for the. xi. (2230) resonance in the p p yields K sub s K sub s channel at LEAR (Low Energy Antiproton Ring)

Technical Report · Thu Feb 01 04:00:00 EST 1990

DOI:https://doi.org/10.2172/6903048· OSTI ID:6903048

Seydoux, J

Seventeen measurements of differential and total cross sections of the {bar p}p {yields} K{sub s}K{sub s} reaction in the antiproton momentum range of 1.30 GeV/c to 1.57 GeV/c are presented. Most of these measurements are centered around the mass of the {xi}(2230) resonance first seen in the K{sup +}K{sup {minus}} and K{sub s}K{sub s} channel of the radiative decay of the J/{Psi} by the MARK III collaboration at SLAC. The trajectories of the charged decay products of the K{sub s} particles are recorded by two stacks of drift chambers and a set of plastic streamer tube planes. The {bar p}p {yields} K{sub s}K{sub s} {yields} {pi}{sup +}{pi}{sup {minus}}{pi}{sup +}{pi}{sup {minus}} events are reconstructed by a computer program and undergo a full kinematic fitting. A branching ratio upper limit, BR({bar p}p {yields} {xi}){center dot}BR({xi} {yields} K{sub s}K{sub s}), on the presence of the resonance is calculated. The experiment was performed by the PS185 collaboration at the Low Energy Antiproton Ring (LEAR) at CERN.

• Research Organization: Carnegie-Mellon Univ., Pittsburgh, PA (USA). Dept. of Physics
• Sponsoring Organization: DOE/ER
• DOE Contract Number: FG02-87ER40315
• OSTI ID: 6903048
• Report Number(s): DOE/ER/40315-173; ON: DE90010126
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
BRANCHING RATIO
CHARMONIUM
CROSS SECTIONS
DATA ACQUISITION SYSTEMS
DRIFT CHAMBERS
ELECTRONIC CIRCUITS
ELEMENTARY PARTICLES
FERMIONS
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INTERACTIONS
J PSI-3097 MESONS
KAONS
MASS SPECTRA
MEASURING INSTRUMENTS
MESONS
MULTIWIRE PROPORTIONAL CHAMBERS
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
POSTULATED PARTICLES
PROPORTIONAL COUNTERS
PROTON-ANTIPROTON INTERACTIONS
PSEUDOSCALAR MESONS
PULSE CIRCUITS
QUARKONIUM
QUARKS
RADIATION DETECTORS
RADIATIVE DECAY
SPECTRA
STRANGE MESONS
STRANGE PARTICLES
TRAJECTORIES
TRIGGER CIRCUITS
VECTOR MESONS
XI BARYONS
XI-2250 BARYONS