The statistical model and nuclear level densities

摘要: A treatment from a theoretical point of view is given for the different aspects statistical model and nuclear level densities. General features densities, including angular momentum parity distributions, are discussed. Several models their description equidistant spacing model, free gas Newton-Cameron Rosenzweig effect, Newson pairing phase transition. The shell without interactions seemed to provide an adequate neutron binding energy with empirical values single-particle spacing. Qualitative considerations, formal solution classical approximation, special limits conservation evaporation inverse cross sections, multiple emission particles, complex fission, lifetime compound state, fluctuation sections distributions also (M.C.G.)