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arXiv · 1603.03137

Low-lying Resonances and Relativistic Screening in Big Bang Nucleosynthesis

Michael A. Famiano·A. Baha Balantekin·Toshitaka Kajino
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Abstract

We explore effects of the screening due to the relativistic electron-positron plasma and presence of resonances in the secondary reactions leading to A=7 nuclei during the Big Bang Nucleosynthesis. In particular, we investigate and examine possible low-lying resonances in the $^7$Be($^3$He, $γ$)$^{10}$C reaction and examine the resultant destruction of $^7$Be for various resonance locations and strengths. While a resonance in the $^{10}$C compound nucleus is thought to have negligible effects we explore the possibility of an enhancement from plasma screening that may adjust the final $^7$Be abundance. We find the effects of relativistic screening and possible low-lying resonances to be relatively small in the standard Early Universe models.

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Michael A. Famiano, A. Baha Balantekin, Toshitaka Kajino. 2016-03-26. Low-lying Resonances and Relativistic Screening in Big Bang Nucleosynthesis. https://doi.org/10.1103/physrevc.93.045804

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