First Direct Measurement of the $^{17}$F($p,\gamma$)$^{18}$Ne Cross Section
ORAL
Abstract
The rate of the $^{17}$F($p,\gamma$)$^{18}$Ne reaction is of significant importance in astrophysical events like novae and x-ray bursts. A $3^{+}$ state in $^{18}$Ne predicted to dominate the rate was found at 599.8 keV using the $^{17}$F($p,p$)$^{17}$F reaction [1], but the resonance strength was unknown. For the first time, the $^{17}$F($p,\gamma$)$^{18}$Ne reaction has been measured directly with the Daresbury Recoil Separator, using a mixed beam of radioactive $^{17}$F and stable $^{17}$O from the HRIBF at ORNL. Resonant proton capture cross sections, $\gamma$ widths, and resonance strengths for the 599.8 keV and 1178 keV resonances will be reported, as well as an upper limit on the direct capture cross section at an intermediate energy. [1] Bardayan et al., Phys. Rev. C \textbf{62} 055804 (2000)
*This work is supported by the US DOE.
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