Abstract / Description of output
The lowest-energy resonance in the Mg-23(p,gamma)Al-24 reaction, which is dominant at classical nova temperatures, has been measured directly for the first time using the DRAGON recoil spectrometer. The experiment used a radioactive Mg-23 beam (mixed within a significantly stronger Na-23 beam) of peak intensity 5 x 10(7) s(-1), at the ISAC facility at TRIUMF. We extract values of E-R = 485.7(-1.8)(+1.3) keV and omega gamma = 38(-15)(+21) meV from our data (all values in the center-of-mass frame unless otherwise stated). In addition, the experiment prompted a recalculation of the Q value for this reaction based on a revision of the Al-24 mass. The effect on the uncertainties in the quantities of ejected Na-22 and Al-26 from oxygen-neon classical novae is discussed.
Original language | English |
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Article number | 045808 |
Pages (from-to) | - |
Number of pages | 12 |
Journal | Physical Review C |
Volume | 81 |
Issue number | 4 |
DOIs | |
Publication status | Published - Apr 2010 |