Constant temperature description of the nuclear level densities

Abstract

The spin and parity dependent nuclear level densities (NLD) are calculated\nfor medium-heavy nuclei using shell model techniques. The NLD are used to\ncalculate cross sections and reaction rates of interest for nuclear\nastrophysics and nuclear energy applications. We investigate a new approach of\ndescribing the shell model NLD via a constant temperature parametrization. This\napproach provides new information about the effects of symmetries on the\ntemperature of the low-lying nuclear states, and it is shown to be more\nversatile for applications.\n