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        The s-process nucleosynthesis : Impact of the uncertainties in the nuclear physics determined by monte carlo variations

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        1708.01629.pdf (PDF, 781Kb)
        Author
        Cescutti, G.
        Nishimura, N.
        Hirschi, R.
        Rauscher, T.
        den Hartogh, J. W.
        Murphy, A. St J.
        Attention
        2299/21375
        Abstract
        We investigated the impact of uncertainties in neutron-capture and weak reactions (on heavy elements) on the s-process nucleosynthesis in low-mass stars and massive stars using a Monte-Carlo based approach. We performed extensive nuclear reaction network calculations that include newly evaluated temperature-dependent upper and lower limits for the individual reaction rates. We found β-decay rate uncertainties affect only a few nuclei near s-process branchings, whereas most of the uncertainty in the final abundances is caused by uncertainties in the neutron capture rates. We suggest a list of uncertain rates as candidates for improved measurement by future experiments.
        Publication date
        2017-10-01
        Published in
        Memorie della Societa Astronomica Italiana - Journal of the Italian Astronomical Society
        Other links
        http://hdl.handle.net/2299/21375
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