1. Constraining the 19Ne(p,γ)20Na Reaction Rate Using a Direct Measurement at DRAGON.
- Author
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Wilkinson, R., Catford, W. N., Lotay, G., Laird, A. M., Riley, J., Lennarz, A., Ruiz, C., Connolly, D., Davids, B., Hutcheon, D. A., Martin, L., Williams, M., Akers, C., Christian, G., Chen, A. A., McNeice, E., and Jedrejcic, D.
- Subjects
NUCLEAR reactions ,NEON isotopes ,SODIUM ,KINEMATICS ,X-ray bursts ,NOVAE (Astronomy) - Abstract
A direct measurement of the
19 Ne(p, γ)20 Na reaction has been performed in inverse kinematics at the DRAGON recoil separator, at an energy ∼ 10 keV higher than previous measurements. The key resonance in the19 Ne + p system relevant for ONe novae and Type-I X-ray burst temperatures have been successfully measured for the first time. Preliminary estimates of the resonance energy and strength are reported as Ec.m. ≈ 458 keV and ωγ ≈ 18 meV. These results are consistent with previous direct measurements, but disagree with the most recent study of the19 Ne(p, γ)20 Na reaction rate. These preliminary results will be finalised after a forthcoming negative log-likelihood analysis. [ABSTRACT FROM AUTHOR]- Published
- 2017
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