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Recent results for single meson production from the Crystal-Barrel/TAPS experiment at ELSA
Authors:R.Beck
Abstract:
The present focus of the CBELSA/TAPS experiment is on meson-photoproduction off the nucleon using polarized photons and polarized targets. Here first preliminary results on the reactions γ~→p~→→ pπ~0 and γ~→p~→pη for both circularly and linearly polarized photons and a longitudinally polarized target are presented. Preliminary results for the beam asymmetry Σ and the double polarization observable G have been extracted for both reactions using the linear polarization data. From the circular polarization data the observable E has been determined. Due to the near 4π angular coverage of the detector system these results cover almost the full solid angle.
Keywords:meson photoproduction  double polarization  baryon spectroscopy
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