Hadronic processes at small angles in storage rings

Cooler Synchrotron and Storage Rings and their circulating very intense cold beams with high phase space density allow the study - in the nonperturbative QCD regime - of hadronic processes which cannot be investigated by other means. Measurements at small angles including zero degrees permit the study of meson production near and at threshold, in particular in unique spin states, because both polarized beams and polarized, windowless targets can be used. Hadron spectroscopy at small angles allows among other studies crucial measurements of charge-exchange processes and break-up studies for investigation of e.g. the deuteron wave function at high momenta, in a test of quark effects, and studies of the excitations of the nucleon. The scope of the seminar is to review the first results obtained at Cooler-Storage Rings, to discuss the experimental approaches and the theoretical models and predictions for meson production including strange hadrons and their interactions in nuclear matter in order to develop the best strategy for future work. See hints under the relevant topics. (orig.)