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arXiv · 1701.06978

Impacts of nuclear-physics uncertainty in stellar temperatures on the s-process nucleosynthesis

N. Nishimura·G. Cescutti·R. Hirschi·T. Rauscher·J. Den Hartogh·A. St. J. Murphy
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Abstract

We evaluated the uncertainty relevant to s-process nucleosynthesis using a Monte-Carlo centred approach. We are based on a realistic and general prescription of temperature dependent uncertainty for the reactions. We considered massive stars for the weak s-process and AGB stars for the main s-process. We found that the adopted uncertainty for (n,$\gamma$) rates, tens of per cent on average, affect the production of s-process nuclei along the $\beta$-stability line, while for $\beta$-decay, for which contributions from excited states enhances the uncertainty, has the strongest impact on branching points.

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N. Nishimura, G. Cescutti, R. Hirschi, T. Rauscher, J. Den Hartogh, A. St. J. Murphy. 2017-01-24. Impacts of nuclear-physics uncertainty in stellar temperatures on the s-process nucleosynthesis. https://doi.org/10.7566/jpscp.14.020903

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