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arXiv · 1803.06758

Impact of the $^7$Be($\alpha, \gamma$)$^{11}$C reaction on the primordial abundance of $^7$Li

M. Hartos·C. A. Bertulani·Shubhchintak·A. M. Mukhamedzhanov·S. Hou
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Abstract

We calculate the radiative capture cross section for $^7$Be($\alpha, \gamma$)$^{11}$C and its reaction rate of relevance for the big bang nucleosynthesis. The impact of this reaction on the primordial $^7$Li abundance is revised including narrow and broad resonances in the pertinent energy region. Our calculations show that it is unlikely that very low energy resonances in $^{11}$C of relevance for the big bang nucleosynthesis would emerge within a two-body potential model. Based on our results and a comparison with previous theoretical and experimental analyses, we conclude that the impact of this reaction on the so-called "cosmological lithium puzzle" is completely irrelevant.

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M. Hartos, C. A. Bertulani, Shubhchintak, A. M. Mukhamedzhanov, S. Hou. 2018-03-18. Impact of the $^7$Be($\alpha, \gamma$)$^{11}$C reaction on the primordial abundance of $^7$Li. https://doi.org/10.3847/1538-4357%2Faac9c1

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