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Applicability Of The Hauser-Feshbach Approach For The Determination of Astrophysical Reaction Rates

T. Rauscher·F. -K. Thielemann·K. -L. Kratz
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Abstract

Nuclear Astrophysics requires the knowledge of reaction rates over a wide range of nuclei and temperatures. In recent calculations the nuclear level density - as an important ingredient to the statistical model (Hauser-Feshbach) - has shown the highest uncertainties. In a back-shifted Fermi-gas formalism utilizing an energy-dependent level density parameter and employing microscopic corrections from a recent FRDM mass formula, we obtain a highly improved fit to experimental level densities. The resulting level density is used for determining criteria for the applicability of the statistical model on neutron-induced reactions.

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T. Rauscher, F. -K. Thielemann, K. -L. Kratz. 1996-09-02. Applicability Of The Hauser-Feshbach Approach For The Determination of Astrophysical Reaction Rates. https://doi.org/10.1016/s0375-9474(97)00266-2

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