Document Type
Article
Publication Date
7-3-2024
Abstract
The interplay between the 22Ne (��,��)26Mg reaction and the competing 22Ne(��,��)25Mg reaction determines the efficiency of the latter as a neutron source at the temperatures of stellar helium burning. In both cases, the rates are dominated by the ��-cluster resonance at 830 keV. This resonance plays a particularly important role in determining the strength of the neutron flux for both the weak and main �� process as well as the �� process. Recent experimental studies based on transfer reactions suggest that the neutron and ��-ray strengths for this resonance are approximately equal. In this study, the 22Ne (��,��) 25Mg resonance strength has been remeasured and found to be similar to the previous direct studies. This reinforces an 830 keV resonance strength that is approximately a factor of 3 larger for the 22Ne (��,��) 25Mg reaction than for the 22Ne (��,��) 26Mg reaction.
Source Publication
Physical Review C (ISSN 2469-9985 | eISSN 2469-9993)
Recommended Citation
Shahina, deBoer, R. J., Görres, J., Fang, R., Febbraro, M. T., Kelmar, R., Matney, M., Manukyan, K., Nattress, J. T., Robles, E., Ruland, T. J., King, T. T., Sanchez, A., Sidhu, R. S., Stech, E., & Wiescher, M. (2024). Strength measurement of the E α lab = 830 keV resonance in the Ne 22 ( α , n ) Mg 25 reaction using a stilbene detector. Physical Review C, 110(1), 015801. https://doi.org/10.1103/PhysRevC.110.015801
Comments
©2024 American Physical Society
The published version of record appears in Physical Review C as cited below. and is available through subscription or purchase using the DOI link on this page.
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