First direct measurement of the Mg23(p,γ)Al24 reaction
Document Type
Article
Publication Date
4-29-2010
Abstract
The lowest-energy resonance in the Mg23(p,γ)Al24 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 Mg23 beam (mixed within a significantly stronger Na23 beam) of peak intensity 5×107 s-1, at the ISAC facility at TRIUMF. We extract values of ER=485.7-1.8+1.3 keV and ωγ=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 Al24 mass. The effect on the uncertainties in the quantities of ejected Na22 and Al26 from oxygen-neon classical novae is discussed. © 2010 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review C - Nuclear Physics
Recommended Citation
Erikson, L., Ruiz, C., Ames, F., Bricault, P., Buchmann, L., Chen, A., Chen, J., Dare, H., Davids, B., Davis, C., Deibel, C., Dombsky, M., Foubister, S., Galinski, N., Greife, U., Hager, U., Hussein, A., Hutcheon, D., Lassen, J., Martin, L., Ottewell, D., Ouellet, C., Ruprecht, G., Setoodehnia, K., Shotter, A., Teigelhöfer, A., Vockenhuber, C., Wrede, C., & Wallner, A. (2010). First direct measurement of the Mg23(p,γ)Al24 reaction. Physical Review C - Nuclear Physics, 81 (4) https://doi.org/10.1103/PhysRevC.81.045808