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

Nishimura, N., Cescutti, G., Hirschi, R., Rauscher, T., Hartogh, J. Den and Murphy, A. St J. (2017) Impacts of nuclear-physics uncertainty in stellar temperatures on the s-process nucleosynthesis. In: JPS Conference Proceedings : Proceedings of the 14th International Symposium on Nuclei in the Cosmos (NIC2016). JPS Conference Proceedings, 14 . The Physical Society of Japan, Niigata, Japan. ISBN 978-4-89027-118-4
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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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