Physics – Nuclear Physics
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1016..134m&link_type=abstract
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: The 10th International Symposium on Origin of Matter and Evolution of Galaxies: From
Physics
Nuclear Physics
Photonuclear Reactions, Statistical Compound-Nucleus Reactions, Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments
Scientific paper
Photoneutron cross sections were measured for 80Se near the neutron separation energy with laser Compton-backscattered γ-ray beams at AIST. Neutron capture rates are evaluated for 79Se with the photoreaction data as experimental constraints on the El γ-strength function, a key parameter in the Hauser-Feshbach statistical model calculation. Solving the set of differential equations under a single neutron exposure, we analyzed the solar abundance ratio of the weak components of 80Kr and 82Kr in terms of the s-process branching at 79Se. We discuss the region of temperature and neutron density allowed for the weak s-process nucleosynthesis.
Akimune Hidetoshi
Goko Shinji
Goriely Stephane
Hara K. Y.
Harada Hideo
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