Publications
First direct measurement of the Mg-23(p,gamma)Al-24 reaction
- Author(s)
- Luke E. Erikson, C Ruiz, Friedhelm Ames, Pierre Bricault, L. R. Buchmann, A A Chen, J Chen, H. Dare, B.S. Davids, Charles A. Davis, Catherine M. Deibel, Marik Dombsky, Scott Foubister, Naomi Galinski, Uwe Greife, U. Hager, A Hussein, D A Hutcheon, Jens Lassen, Lars Martin, D Ottewell, C. V. Ouellet, G Ruprecht, Kiana Setoodehnia, Alan C. Shotter, Andrea Teigelhöfer, Christof Vockenhuber, Christian E. Wrede, Anton Wallner
- Abstract
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.
- Organisation(s)
- Isotope Physics
- External organisation(s)
- Colorado School of Mines, TRIUMF, McMaster University, University of Surrey, Argonne National Laboratory, Thompson Rivers University, University of Northern British Columbia (UNBC), University of Edinburgh, University of Washington
- Journal
- Physical Review C
- Volume
- 81
- No. of pages
- 12
- ISSN
- 0556-2813
- DOI
- https://doi.org/10.1103/PhysRevC.81.045808
- Publication date
- 2010
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103005 Atomic physics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/21a3cbb9-9dac-4541-87ee-f719b564015a