We calculate microscopically total and parity-projected level densities for beta-stable even-even nuclei between Fe and Ge, using the shell model Monte Carlo methods in the complete (pf + 0 g(9/2))-shell. A single-particle level density parameter a and backshift parameter Delta are extracted by fitting the calculated densities to a backshifted Bethe formula, and their systematics are studied across the region. Shell effects are observed in Delta for nuclei with Z = 28 or N = 28 and in the behavior of A/a as a function of the number of neutrons. We find a significant parity dependence of the level densities for nuclei with A less than or similar to 60, which diminishes as A increases. (C) 1998 Elsevier Science B.V. All rights reserved. [References: 17]
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