Physics – Nuclear Physics
Scientific paper
Feb 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009phrvc..79b5801m&link_type=abstract
Physical Review C, vol. 79, Issue 2, id. 025801
Physics
Nuclear Physics
6
Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments, Photoproduction Reactions, Statistical Compound-Nucleus Reactions, 59<=A<=89
Scientific paper
Photoneutron cross sections were measured for Se80 immediately above the neutron separation energy with quasimonochromatic γ-ray beams to experimentally constrain the E1 γ strength function for Se80. Two sets of the γ strength function and the level density that equally meet the experimental constraint predict largely different neutron capture cross sections for Se79. Based on the Maxwellian-averaged cross sections of the latest compilation complemented with the predicted cross sections for Se79, we calculated σN values of the main s-process component using a phenomenological model and deduced empirical abundances of the weak s-process component. An attempt is made of considering the implications of the abundance ratios of Kr80 and Kr82 within the framework of phenomenological models for the weak s process.
Akimune Hidetoshi
Goko Shinji
Goriely Stephane
Hara K. Y.
Harada Hideo
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