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HK: Fachverband Physik der Hadronen und Kerne

HK 17: Elektromagnetische und Hadronische Sonden

HK 17.8: Vortrag

Dienstag, 13. März 2007, 18:45–19:00, A

Measurement of the beam asymmetry Σ in the channel γ^→p → p π⁰ π⁰ with the CBELSA-TAPS experiment — •Vahe Sokhoyan for the CBELSA-TAPS collaboration — Nußallee 14-16, D-53115 Bonn

To unambiguously identify baryon resonances in photoproduction experiments not only the measurement of differential cross sections but also of polarization observables is of big importance. Here we present data on the reaction γ^→p → p π⁰ π⁰, covering third resonance region. The data has been taken with the CBELSA-TAPS experiment at the electron accelerator ELSA in Bonn, using linearly polarized photons. Preliminary results on the measured beam asymmetries will be presented. Funded by the Deutsche Forschungsgemeinschaft within SFB/TR-16