A search for the ξ(2230) resonance in the bar p p → KsKs channel at LEAR [Low Energy Antiproton Ring]
Description
Seventeen measurements of differential and total cross sections of the bar pp → KsKs 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 ξ(2230) resonance first seen in the K+K- and KsKs channel of the radiative decay of the J/Ψ by the MARK III collaboration at SLAC. The trajectories of the charged decay products of the Ks particles are recorded by two stacks of drift chambers and a set of plastic streamer tube planes. The bar pp → KsKs → π+π-π+π- events are reconstructed by a computer program and undergo a full kinematic fitting. A branching ratio upper limit, BR(bar pp → ξ)·BR(ξ → KsKs), 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
Availability note (English)
MF available from INIS under the Report Number; NTIS, PC A06/MF A01 as DE90010126; OSTI; INIS; US Govt. Printing Office Dep.
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Additional details
Publishing Information
- Imprint Pagination
- 101 p.
- Report number
- DOE/ER/40315--173
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21056531
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- BRANCHING RATIO; CROSS SECTIONS; DATA ACQUISITION SYSTEMS; DRIFT CHAMBERS; J PSI-3097 MESONS; KAONS; MASS SPECTRA; PROTON-ANTIPROTON INTERACTIONS; QUARKS; RADIATIVE DECAY; TRAJECTORIES; TRIGGER CIRCUITS; XI-2250 BARYONS
- Descriptors DEC
- BARYON-BARYON INTERACTIONS; BARYONS; BOSONS; CHARMONIUM; DECAY; ELECTRONIC CIRCUITS; ELEMENTARY PARTICLES; FERMIONS; HADRON-HADRON INTERACTIONS; HADRONS; HYPERONS; INTERACTIONS; MEASURING INSTRUMENTS; MESONS; MULTIWIRE PROPORTIONAL CHAMBER; NUCLEON-ANTINUCLEON INTERACTIO; PARTICLE DECAY; PARTICLE INTERACTIONS; POSTULATED PARTICLES; PROPORTIONAL COUNTERS; PSEUDOSCALAR MESONS; PULSE CIRCUITS; QUARKONIUM; RADIATION DETECTORS; SPECTRA; STRANGE MESONS; STRANGE PARTICLES; VECTOR MESONS; XI BARYONS
Optional Information
- Contract/Grant/Project number
- Contract FG02-87ER40315