Physics – Nuclear Physics
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aps..dnp.dc009r&link_type=abstract
American Physical Society, Division of Nuclear Physics Meeting, 27-30 October, 2004, Chicago, IL. MEETING ID: DNP04., abstract #
Physics
Nuclear Physics
Scientific paper
Almost all of the heavy elements are produced via neutron capture reactions in a multitude of stellar production sites. Stellar models yield the element production during the quiescent phase as well as the initial configuration for supernova simulations. Their predictive power is currently limited because they contain poorly constrained physics components such as convection, rotation or magnetic fields. With a neutron facility at RIA and a calorimetric γ-ray detector similar to DANCE at LANL we could largely improve these physics components. Neutron captures on heavy radioactive isotopes provide a unique opportunity to largely improve these physics components. The analysis of branch-points of the s-process path in combination with isotopic abundance information from pre-solar meteoritic grains offer a very powerful tool to address important questions of nuclear astrophysics. The astrophysical implications of recent measurements at DANCE and possibilities for future (n,γ) experiments at RIA will be presented during the talk.
Herwig Falk
Reifarth Rene
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