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Bonn 2010 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 52: Hadronenstruktur und -spektroskopie IX

HK 52.7: Vortrag

Donnerstag, 18. März 2010, 18:30–18:45, HG III

Measurement of polarization observables in the reaction γpp π0 π0 with the CBELSA/TAPS experiment — •Vahe Sokhoyan — Helmholtz-Institut für Strahlen und Kernphysik, Nussallee 14-16, 53115 Bonn

Meson photoproduction off the nucleon is an important tool to understand the spectrum and the properties of baryon resonances. To unambiguously identify baryon resonances in photoproduction experiments not only the measurement of differential cross sections but also of polarization observables is of large importance.
With the CBELSA/TAPS experiment, located at the electron accelerator ELSA in Bonn, such polarization observables have been measured using linearly polarized photons impinging on a liquid hydrogen target. New results obtained on the polarization observables Is and Ic will be presented in a photon energy range from 970 to 1650 MeV.
Supported by the Deutsche Forschungsgemeinschaft (SFB/TR-16)

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