Nuclear inputs for nucleosynthesis applications

Details Nuclear inputs for nucleosynthesis applications Nuclear inputs for nucleosynthesis applications

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1090...33g&link_type=abstract

CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS: Proceedings of the 13th International Symposium on Capture Gamma-Ray Spectros

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Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments, Binding Energies And Masses, Atomic Masses, Mass Spectra, Abundances, And Isotopes

Scientific paper

Although an important effort has been devoted in the last decades to measure reaction cross sections of interest in astrophysics, most nuclear astrophysics applications still require the use of theoretical predictions to estimate experimentally unknown rates. The nuclear ingredients to the reaction model should preferably be estimated from microscopic or semi-microscopic global predictions based on sound and reliable nuclear models which, in turn, can compete with more phenomenological highly-parametrized models in the reproduction of experimental data. The latest developments made in deriving the nuclear inputs of relevance in astrophysics applications are reviewed. They mainly concern nuclear structure properties, nuclear level densities, optical potentials.
New developments to improve the predictions of radiative neutron capture rates are also discussed. They include the recent improvements made to the TALYS reaction code and the analysis of the pre-equilibrium contribution. The direct reaction mechanism is also discussed and new estimates on the basis of the newly-derived nuclear ingredients are compared with the compound-nucleus contribution.

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