Parity-Dependence in the Nuclear Level Density
  Astrophysical reaction rates are sensitive to the parity distribution at low excitation energies. We combine a formula for the energy-dependent parity distribution with a microscopic-macroscopic nuclear level density. This approach describes well the transition from low excitation energies, where a single parity dominates, to high excitations where the two densities are equal. 
D. Mocelj, T. Rauscher, G. Martinez-Pinedo, K. Langanke, L.   Pacearescu, A. Faessler, F.-K. Thielemann