Revised decay properties of the key 93-keV resonance in the 25Mg(p,γ) reaction and its influence on the MgAl cycle in astrophysical environments
Abstract
The γ-decay properties of an excited state in 26Al at 6398.3(8) keV have been reexamined using the 11B+16O fusion-evaporation reaction. This level represents a key 93.1(8)-keV resonance in the 25Mg+p system and its relative branching to the 26Al 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 26Al radioactivity.
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Format
Articles
Research article
Published
2022
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Subjects
Publication in research information system
Publisher
American Physical Society (APS)
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202206223590Use this for linking
Review status
Peer reviewed
ISSN
2469-9985
DOI
https://doi.org/10.1103/PhysRevC.105.L042801
Language
English
Published in
Physical Review C
Citation
- 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. (2022). Revised decay properties of the key 93-keV resonance in the 25Mg(p,γ) reaction and its influence on the MgAl cycle in astrophysical environments. Physical Review C, 105(4), Article L042801. https://doi.org/10.1103/PhysRevC.105.L042801
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Additional information about funding
This work was supported by the US Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DEAC02-06CH11357 and Grants No. DEFG02-94ER40834, No. DEFG02-97ER41041, and No. DEFG02-97ER41033. UK personnel were supported by the Science and Technologies Facilities Council (STFC). This research uses resources of ANL's ATLAS facility, which is a DOE Office of Science User facility.
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