Statistical models of nuclear level densities

Details Statistical models of nuclear level densities Statistical models of nuclear level densities

2001-05-17

arxiv.org/abs/nucl-th/0105041v1

Physics

Nuclear Physics

Nuclear Theory

13 pages, 3 figures, submitted to PRL

Scientific paper

We present calculations of nuclear level densities that are based upon the detailed microphysics of the interacting shell model yet are also computationally tractable. To do this, we combine in a novel fashion several previously disparate ideas from statistical spectroscopy, namely partitioning of the model space into subspaces, analytic calculations of moments up to fourth order directly from the two-body interaction, and Zuker's binomial distribution. We get excellent agreement with full scale interacting shell model calculations. We also calculate ``ab initio'' the level densities for $^{29}$Si and $^{57}$Co and get reasonable agreement with experiment.

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