A Study of the ^12C + ^12C Fusion Reactions at Astrophysically Relevant Energies

Details A Study of the ^12C + ^12C Fusion Reactions at Astrophysically Relevant Energies A Study of the ^12C + ^12C Fusion Reactions at Astrophysically Relevant Energies

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aps..apr.h7002z&link_type=abstract

American Physical Society, APS April Meeting 2010, February 13-16, 2010, abstract #H7.002

Physics

Scientific paper

The fusion reactions ^12C(^12C,p)^23Na and ^12C(^12C,α)^20Ne are the relevant nuclear processes in the carbon burning phase of stellar evolution. The stellar mass required to ignite carbon depends on the fusion reaction rates at the Gamow energy. The measurement of carbon burning reaction rates near the Gamow energy has been limited by hydrogen contamination in the carbon targets. Thus current estimates of the reaction rates rely heavily on extrapolation from higher energies that does not include resonances. We extended the lower energy limit by a novel technique to strongly reduce the hydrogen background for both gamma ray and charged particle measurements. The current experiment intends to further extend the lower energy limit by utilizing ultra low hydrogen content targets. Experimental procedures, results, and the impact for reaction rates will be discussed. )

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