Recent results for single meson production from the Crystal-Barrel/TAPS ezperiment at ELSA
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.
meson photoproduction double polarization baryon spectroscopy
R.Beck
HISKP University of Bonn,53115 Bonn,Germany
国际会议
The 12th International Workshop on the Physics of Ezcited Nucleon NSTAR2009(2009激发态核子物理研讨会)
北京
英文
1056-1062
2009-04-19（万方平台首次上网日期，不代表论文的发表时间）