6533b870fe1ef96bd12cf19d

RESEARCH PRODUCT

Nuclear Level Density and the Determination of Thermonuclear Rates for Astrophysics

Thomas RauscherKarl-ludwig KratzFriedrich-karl Thielemann

subject

PhysicsNuclear and High Energy PhysicsThermonuclear fusionNuclear TheoryNuclear TheoryAstrophysics (astro-ph)FOS: Physical sciencesAstrophysicsp-processCharged particleMass formulaNuclear physicsNuclear Theory (nucl-th)Excited statePairingNuclear astrophysicsr-processNuclear Experiment

description

The prediction of cross sections for nuclei far off stability is crucial in the field of nuclear astrophysics. We discuss the model mostly employed for such calculations: the statistical model (Hauser-Feshbach). Special emphasis is put on the uncertainties arising from nuclear level density descriptions and an improved global description is presented. Furthermore, criteria for the applicability of the statistical model are investigated and a "map" for the applicability of the model to reactions of stable and unstable nuclei with neutral and charged particles is given.

https://dx.doi.org/10.48550/arxiv.astro-ph/9706294