- Conference date: 8–11 September 2008
- Location: Ulaanbaatar (Mongolia)
We study the structure of nuclei in the energy region between the ground state and the neutron separation energy, here called warm nuclei. The onset of chaos in the nucleus as excitation energy is increased is briefly reviewed. Chaos implies fluctuations of energies and wave functions qualitatively the same for all chaotic nuclei. On the other hand, large structure effects are seen, e.g. in the level‐density function at same excitation energies. A microscopic model for the level density is reviewed and we discuss effects on structure of the total level‐density function, parity enhancement, and the spin distribution function. Comparisons to data are performed at the neutron separation energy for all observed nuclei, and structure of the level‐density function for a few measured cases. The role of structure effects in the level‐density function for fission dynamics is exemplified.
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