Resonance strengths of the 34S + α reaction
Abstract
Late in their evolution, particularly massive stars undergo a stage of explosive oxygen burning. The free α-particle density will rapidly increase and initiate a network of reactions among nuclides ranging from 28Si to 40Ca. Next there will be a abrupt rise in the abundances of 34S and 38Ar where the small excess of neutrons reside. The final abundances of nuclei in this mass region depend on the reaction cross sections involving these two nuclei. Currently there are large discrepancies in the strengths of the 34S + α resonances in the energy range of interest for this astrophysical environment. A new measurement was performed at DRAGON to resolve these discrepancies. Preliminary data will be shown and tentative results discussed.
- Publication:
-
APS Division of Nuclear Physics Meeting Abstracts
- Pub Date:
- September 2014
- Bibcode:
- 2014APS..DNP.FD012O