Abstract
The rate of neutron-induced nucleosynthesis of heavy nuclei is determined by the astrophysical scenario and by the rate of beta decay of nuclei involved in the r-process. The effect of beta-decay rates calculated within various theoretical models on the abundances of heavy nuclei is analyzed on the basis of the yields of heavy nuclei in the r-process and the determination of their sensitivity to input data. It is shown that a sizable change in the r-process rate has a strong effect on the process of formation of the third peak in the abundance curve and on the size and position of this peak.
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Funding
This work was supported by Russian Foundation of Basic Research, grant no. 18-29-21019 mk for calculations of beta-decay rates and abundances of heavy nuclei; and grant no. 18-02-00670 for calculations of the beta-decay strength function \(S(E)\) for a number of nuclei with allowance for the resonance structure.
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Panov, I.V., Lutostansky, Y.S. Nucleosynthesis-Rate Dependence of Abundances of Nuclei Produced in the r-Process. Phys. Atom. Nuclei 83, 613–620 (2020). https://doi.org/10.1134/S1063778820040171
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DOI: https://doi.org/10.1134/S1063778820040171