A DEDICATED-0-DEGREES FACILITY FOR THRESHOLD PARTICLE-PRODUCTION STUDIES AT COSY

A universal facility is in preparation for the study of particle produ ction in proton-nucleus reactions below the nucleon-nucleon threshold. The device will be located at the internal target position TP2 at COS Y-Julich and will consist of three dipole magnets. This 0-degrees Faci lity will separate ejectiles from the circulating proton beam and allo w momentum and angle analysis both for positively and negatively charg ed particles. A major goal of the experimental program is the investig ation of the K+-meson production at projectile energies below the NN t hreshold. The detector concept for these studies is described and also an overview over further planned experiments is given.