Constraining the Ne-19(p,gamma)Na-20 Reaction Rate Using a Direct Measurement at DRAGON

A direct measurement of the Ne-19(p, gamma)Na-20 reaction has been performed in inverse kinematics at the DRAGON recoil separator, at an energy similar to 10 keV higher than previous measurements. The key resonance in the Ne-19 + 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 E-c.m. approximate to 458 keV and omega gamma approximate to 18 meV. These results are consistent with previous direct measurements, but disagree with the most recent study of the Ne-19(p, gamma)Na-20 reaction rate. These preliminary results will be finalised after a forthcoming negative log-likelihood analysis.