Parity dependence of 45Sc level densities

AbstractThe parity dependence of nuclear level densities provides a detailed test of the predictions of level density models. Proton resonances are extremely well suited for such studies. A high-resolution measurement of resonances in the 44Ca(p, p0) and 44Ca(p, p1) reactions determined resonance parameters for ≈800 resonances. Statistical analyses to evaluate the number of missing levels and of misassignments suggest that the 1/2+ and 1/2− data sets are the most pure and complete ever obtained. The resulting level densities are ρ(1/2+)=127−8+7MeV−1 and ρ(1/2−)=132−9+8MeV−1. There is no evidence of parity dependence of J=1/2 levels at Ex≈10MeV in 45Sc