Speaker
Description
The nucleon excitation scheme has been under intensive investigation with meson photoproduction experiments during the last few years world wide. Currently, a lot of new experimental results are coming out from the CLAS experiment at Jlab, the Crystal Barrel experiment at the ELSA accelerator in Bonn and the Crystal Ball experiment at the MAMI accelerator in Mainz. These experiments focus on the investigation of single and double polarization observables for different meson production reactions using longitudinally and transversely polarized targets, linearly and circularly polarized photon beams as well as the polarization of the recoil protons. The new data sets provide stringent constraints for partial wave analyses of meson photoproduction on the nucleon and will lead to an unique determination of the contributing resonances. The new experimental results will be presented and the impact of the new results to the nucleon excitation spectrum will be discussed.
Summary
The nucleon excitation scheme has been under intensive investigation with
meson photoproduction experiments during the last few years world wide.
Currently, a lot of new experimental results are coming out from the CLAS
experiment at Jlab, the Crystal Barrel experiment at the ELSA accelerator
in Bonn and the Crystal Ball experiment at the MAMI accelerator in
Mainz. These experiments focus on the investigation of single and double
polarization observables for different meson production reactions using
longitudinally and transversely polarized targets, linearly and circularly
polarized photon beams as well as the polarization of the recoil protons.
The new data sets provide stringent constraints for partial wave analyses of meson photoproduction on the nucleon and will lead to an unique
determination of the contributing resonances. The new experimental results will be presented and the impact of the new results to the nucleon
excitation spectrum will be discussed.
