First Direct Measurement of the F17(p,?γ)Ne18 Cross Section

Details First Direct Measurement of the F17(p,?γ)Ne18 Cross Section First Direct Measurement of the F17(p,?γ)Ne18 Cross Section

Apr 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009phrvl.102o2502c&link_type=abstract

Physical Review Letters, vol. 102, Issue 15, id. 152502

Physics

Nuclear Physics

8

Resonance Reactions, Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments, Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments, 6<=A<=19

Scientific paper

The rate of the F17(p,?γ)Ne18 reaction is important in various astrophysical events. A previous F17(p,?p)F17 measurement identified a 3+ state providing the strongest resonance contribution, but the resonance strength was unknown. We have directly measured the F17(p,?γ)Ne18 reaction using a mixed beam of F17 and O17 at ORNL. The resonance strength for the 3+ resonance in Ne18 was found to be ωγ=33±14(stat)±17(syst)meV, corresponding to a γ width of Γγ=56±24(stat)±30(syst)meV. An upper limit on the direct capture of S(E)≤65keVb was determined at an energy of 800 keV.

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