Near threshold two meson production in hardonic fusion reactions

Conference · Wed Apr 10 04:00:00 EDT 1991 · AIP Conference Proceedings (American Institute of Physics); (USA)

OSTI ID:5609696

Jahn, R ^[1]

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1. Insitut fuer Stahlen- und Kernphysik University of Bonn, FRG (DE)

An approved and funded exclusive COSY experiment is presented, which focuses on near threshold two meson production via the reactions {ital p}+{ital d}{r arrow}{sup 3} {ital He}{sup +}{pi}{sup +}{pi}{sup {minus}} and {ital p}+{ital d}{r arrow}{sup 3} {ital He}+{ital K}{sup +}{ital K{minus}}. It takes advantage of the high quality of the cooled external COSY beam and the existing spectrometer BIG KARL. The setup consists of a vertex wall and a scintillator cylinder and endcap covering a 4{pi} solid angle. The large efficiency and high resolution of this detection method will yield precision data on the low energy ({ital T}{lt}50 MeV) meson-meson interaction and probe into questions like the ABC-effect and KK molecule. The detector further allows a measurement of possible radiative {phi} (1020) decay, which will directly probe the strange quark content of the {ital f}{sub 0}(975). Existing inclusive data as well as first results of a very recent semi-exclusive' experiment performed at SATURNE will be also be presented.

• OSTI ID: 5609696
• Report Number(s): CONF-9009332--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (USA) Journal Volume: 221:1
• Country of Publication: United States
• Language: English

Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
651220 -- Nuclear Properties & Reactions
A=1-5
Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACCELERATORS
BARYON REACTIONS
BOSONS
BRANCHING RATIO
CAPTURE
CHARGED-PARTICLE REACTIONS
COMPOSITE MODELS
CYCLIC ACCELERATORS
DEUTERIUM TARGET
ELEMENTARY PARTICLES
ENERGY
ENERGY RANGE
EVEN-ODD NUCLEI
F0-975 MESONS
GEV RANGE
GEV RANGE 01-10
HADRON REACTIONS
HADRONS
HELIUM 3
HELIUM ISOTOPES
ISOTOPES
KAONS
KAONS MINUS
KAONS PLUS
LIGHT NUCLEI
MATHEMATICAL MODELS
MESONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PHI-1020 MESONS
PIONS
PIONS MINUS
PIONS PLUS
PROTON REACTIONS
PSEUDOSCALAR MESONS
QUARK MODEL
QUARKONIUM
SATURNE
SCALAR MESONS
STABLE ISOTOPES
STRANGE MESONS
STRANGE PARTICLES
STRANGEONIUM
SYNCHROTRONS
TARGETS
THRESHOLD ENERGY
VECTOR MESONS