Köln 2004 – wissenschaftliches Programm
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HK: Physik der Hadronen und Kerne
HK 30: Electromagnetic and Hadronic Probes V
HK 30.2: Vortrag
Mittwoch, 10. März 2004, 14:30–14:45, B
Nucleon-resonance decay by the K0 Σ+ channel — •ralph castelijns — KVI, Groningen, the Netherlands
At the tagged photon beam of the ELSA electron synchrotron at the Univ. of Bonn/Germany the Crystal Barrel photon spectrometer and TAPS have been combined to provide a 4 π detector for multi-neutral final states from photonuclear reactions. The TAPS array covers the forward polar angle region and thus complements the Crystal Barrel with a fast and highly granular detector for photons, protons and neutrons. In addition, it offers selective triggering options for efficient data taking.
In a series of experiments on single and multiple neutron meson emission we have concentrated on the hyperon production off protons and deuterons, and in particular on the K0 Σ+ channel. High-quality excitation function, angular distributions and polarization measurements near the K Σ threshold were obtained. First preliminary results on hyperon production will be presented. For comparison, the published results of SAPHIR data [1] on hyperon production will be shown.
[1] S. Görs et al., Phys. Lett. B 464 (1999) 331