A1 Journal article (refereed)
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 (2022)

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

JYU authors or editors

Publication details

All authors or editors: 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.; et al.

Journal or series: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Publication year: 2022

Publication date: 04/04/2022

Volume: 105

Issue number: 4

Article number: L042801

Publisher: American Physical Society (APS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevC.105.L042801

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/81985

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.

Keywords: nuclear physics; astrophysics; cosmic radiation; gamma radiation; magnesium; aluminium

Contributing organizations

Ministry reporting: Yes

VIRTA submission year: 2022

JUFO rating: 2