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
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
Published inPhysical Review C
© 2022 American Physical Society (APS)
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.
PublisherAmerican Physical Society (APS)
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Additional information about fundingThis 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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