Münster 2002 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 6: Heavy Ions I

HK 6.8: Vortrag

Montag, 11. März 2002, 18:45–19:00, E

Production of Kaons and Antikaons in Proton-Nucleus Collisions near Threshold — •Werner Scheinast and Burkhard Kaempfer — Forschungszentrum Rossendorf

With the first proton beam at the heavy-ion synchrotron SIS at GSI the Kaon Spectrometer KaoS was used for a systematic investigation of the K⁺ and K⁻ production in proton-nucleus collisions. Double-differential cross sections were determined as function of momentum and scattering angle for C and Au targets at proton energies 1.6, 2.5, and 3.5 GeV. Additionally to K^± spectra also π^± spectra were taken and the entire data set has been analysed in a uniform way.
These data provide important information on the production of strange mesons in one and two step processes. The data also allow to extract information on the properties of strange hadrons in nuclear matter at saturation densities.
Experimental results will be discussed and compared to various model predictions.