Proposal For the Study of High-Energy Reaction Mechanisms by the Measurement of the Angular and Energy Distributions of Nuclei Recoiling From Targets Bombarded With 200-300 GEV Protons

摘要

When energetic particles interact with complex nuclei, a wide variety of product nuclei is formed. In earlier work at FNAL (Experiment E-8l), the formation cross sections of a large number of product nuclides formed from various targets were measured, as well as the average recoil properties (mean momentum and forward-to-backward ratio) of some of them. As a result of these initial experiments, some of which are still continuing, it is now proposed to make more detailed measurements of the recoil properties of certain radioactive nuclides. Using a thin target inside an evacuated chamber surrounded by catcher foils, the angular distribution and the range distribution at specific angles will be determined for specific radionuclides. Such detailed kinematic measurements will aid in the effort to characterize the mechanisms of nuclear reactions at ultra-relativistic energies.