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HK: Physik der Hadronen und Kerne

HK 12: Poster Session: Electromagentic and Hadronic Probes

HK 12.34: Poster

Dienstag, 12. März 2002, 10:30–12:45, Foyer Chemie

Investigation of the Polarisation Asymmetry in Eta-Photoproduction on Protons in the GDH-Experiment at ELSA — •Melitta Godó and Thilo Michel — Physikalisches Institut IV, Erwin-Rommel-Str. 1, 91058 Erlangen

An analysis of the data taken by the GDH-Experiment at ELSA in the energy range between 700 and 1000 MeV has shown the possibility to extract information about the asymmetry of the eta-photoproduction. The reaction is identified by a missing-mass-method. With regard to this method, the acceptance of the GDH-detector for this particular reaction channel has been simulated. This presentation outlines the acceptance calculations and first experimental data of an asymmetry in eta-photoproduction.