2H(18F,pα)15N reaction applied to nova γ-ray emission

Details 2H(18F,pα)15N reaction applied to nova γ-ray emission 2H(18F,pα)15N reaction applied to nova γ-ray emission

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003phrvc..67e2801s&link_type=abstract

Physical Review C, vol. 67, Issue 5, id. 052801

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Transfer Reactions, Spectroscopic Factors And Asymptotic Normalization Coefficients, Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments, 6<=A<=19

Scientific paper

The 18F(p,α)15O reaction is recognized to be one of the most important reactions for nova γ-ray astronomy, as it governs the early E<~511keV γ emission. However, in the nova temperature regime, its rate remains largely uncertain due to unknown low-energy resonance strengths. We report here the measurement of the 2H(18F,p)19F(α)15N one-nucleon transfer reaction, induced by a 14-MeV 18F radioactive beam impinging on a CD2 target; outgoing protons and 15N (or α particles) were detected in coincidence in two silicon strip detectors. A distorted-wave Born approximation analysis of the data resulted in new limits to the contribution of low-energy resonances to the rate of the 18F(p,α)15O reaction.

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