R-Matrix Analysis

摘要: Experiments involving polarization techniques have nowhere unearthed a richer structure of observed phenomena than in those scattering and reaction processes very few nucleons. This paper is concerned with program, carried out colleagues at Los Alamos, its first goal as phenomenological understanding these processes. It the belief us working on this program that our approach essentially dictated by fact overwhelming amount information already collected seems to be still only marginally sufficient describe complex behavior systems. somewhat paradoxical situation, an almost unmanageable quantity data perhaps just threshold encompassing all aspects such system, call for two main features. First, channels complementary experiments should described simultaneously. Second, energy dependent parameterization used, if because are not sufficiently complete single energies. The simultaneous description allows make use important principle unitarity collision matrix S. need has led choose R-matrix formalism. In context formalism regarded practical tool. does discuss role general theories nuclear reactions. may be, however, results present work will place discussions.