The 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 Ca-44(p,p(o)) and Ca-44(p,p(1)) reactions determined resonance parameters for approximate to 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 rho(1/2(+)) = 127(-8)(+7) MeV-1 and rho(1/2(-)) = 132(-9)(+8) MeV-1. There is no evidence of parity dependence of J = 1/2 levels at E-x approximate to 10 MeV in Sc-45. (C) 2004 Elsevier B.V. All rights reserved.
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