Revised decay properties of the key 93-keV resonance in the Mg 25 (p,γ) reaction and its influence on the MgAl cycle in astrophysical environments
- Lotay, G.
- Doherty, D.T.
- Janssens, R.V.F.
- Seweryniak, D.
- Albers, H.M.
- Almaraz-Calderon, S.
- Carpenter, M.P.
- Champagne, A.E.
- Chiara, C.J.
- Hoffman, C.R.
- Iliadis, C.
- Kankainen, A.
- Lauritsen, T.
- Zhu, S.
DOIAbstract
The γ-decay properties of an excited state in Al26 at 6398.3(8) keV have been reexamined using the B11+O16 fusion-evaporation reaction. This level represents a key 93.1(8)-keV resonance in the Mg25+p system and its relative branching to the Al26 ground state, f0, has been determined to be 0.76±0.03 (stat.) ±0.10 (syst.). This is a significantly higher value than the most recent evaluation and implies a considerable increase in the production of cosmic γ rays from Al26 radioactivity
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