6533b7ddfe1ef96bd1274a24
RESEARCH PRODUCT
Applicability Of The Hauser-Feshbach Approach For The Determination of Astrophysical Reaction Rates
Karl-ludwig KratzThomas RauscherFriedrich-karl Thielemannsubject
PhysicsNuclear and High Energy PhysicsNuclear TheoryAstrophysics (astro-ph)FOS: Physical sciencesStatistical modelAstrophysicsAstrophysicsNuclear physicsMass formulaReaction rateNuclear Theory (nucl-th)Formalism (philosophy of mathematics)Nuclear astrophysicsNuclear Experimentdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-09-02 |