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, γ ) rates, tens of per cent on average, affect the production of s-process nuclei along the β -stability line, while for β -decay, for whichcontributions from excited states enhances the uncertainty, has the strongest impact on branching points.

Impacts of Nuclear-Physics Uncertainty in Stellar Temperatures on the s-Process Nucleosynthesis

Cescutti G;
2017-01-01

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, γ ) rates, tens of per cent on average, affect the production of s-process nuclei along the β -stability line, while for β -decay, for whichcontributions from excited states enhances the uncertainty, has the strongest impact on branching points.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/3003817
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