Kaon pair production in pp, pd and dd collisions at COSY

Journal Article · Thu Aug 05 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3483387· OSTI ID:21426450

Hartmann, M ^[1]; Dzyuba, A ^[2]; Keshelashvili, I ^[3]; Maeda, Y ^[4]; Polyanskiy, A ^[5]; Wilkin, C ^[6]; Yuan, X ^[7]

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1. Institut fuer Kernphysik and Juelich Centre for Hadron Physics, Forschungszentrum Juelich, D-52425 Juelich (Germany)
2. High Energy Physics Department, Petersburg Nuclear Physics Institute, RU-188350 Gatchina (Russian Federation)
3. Department of Physics, University of Basel, Klingelbergstrasse 82, CH-4056 Basel (Switzerland)
4. Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047 (Japan)
5. Institute for Theoretical and Experimental Physics, RU-117218 Moscow (Russian Federation)
6. Physics and Astronomy Department, UCL, London WC 1E 6BT (United Kingdom)
7. Institute of Modern Physics, Chinese Academy of Sciences, 730000 Lanzhou (China)

The near-threshold production of kaon-pairs has been investigated in proton-proton, proton-deuteron and deuteron-deuteron collisions at the Cooler Synchrotron COSY. The excitation function for the pp{yields}ppK{sup +}K{sup -} reaction and the invariant K{sup -}p, K{sup -}pp, and K{sup +}K{sup -} mass distributions indicate the presence of both K{sup -}p and K{sup +}K{sup -} final state interactions. Analogous final-state interactions of antikaons with deuterons has been found in the pp{yields}dK{sup +}K{sup 0}-bar reaction as well as in the pn{yields}dK{sup +}K{sup -} reaction, measured in the quasi-free pd{yields}p{sub sp}dK{sup +}K{sup -} process with a 'spectator' proton (p{sub sp}). The existing COSY data on the pd{yields}{sup 3}HeK{sup +}K{sup -} reaction are not yet sufficient to study the K{sup -3}He and K{sup +}K{sup -} final state interactions. A very small total cross section was found for the dd{yields}{sup 4}HeK{sup +}K{sup -} reaction.

• OSTI ID: 21426450
• Journal Information: AIP Conference Proceedings, Vol. 1257, Issue 1; Conference: HADRON 2009: 13. international conference on hadron spectroscopy, Tallahassee, FL (United States), 29 Nov - 4 Dec 2009; Other Information: DOI: 10.1063/1.3483387; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIKAONS NEUTRAL
COSY STORAGE RING
EXCITATION FUNCTIONS
FINAL-STATE INTERACTIONS
KAONS MINUS
KAONS PLUS
MASS DISTRIBUTION
MULTIPARTICLE SPECTROMETERS
PAIR PRODUCTION
PARTICLE DECAY
PARTICLE IDENTIFICATION
PROTON-PROTON INTERACTIONS
TOTAL CROSS SECTIONS
ACCELERATORS
ANTIKAONS
ANTIMATTER
ANTIPARTICLES
BARYON-BARYON INTERACTIONS
BOSONS
CROSS SECTIONS
CYCLIC ACCELERATORS
DECAY
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
FUNCTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
KAONS
KAONS NEUTRAL
MATTER
MEASURING INSTRUMENTS
MESONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PROTON-NUCLEON INTERACTIONS
PSEUDOSCALAR MESONS
SPATIAL DISTRIBUTION
SPECTROMETERS
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
SYNCHROTRONS