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        Fission barriers : How do they affect the R-process?

        Author
        Panov, I.
        Pfeiffer, B.
        Kratz, K.L.
        Kolbe, E.
        Rauscher, T.
        Thielemann, Friedrich-Karl
        Attention
        2299/14879
        Abstract
        Fission is an important process which is responsible not only for the yields of transuranium isotopes, but may have a strong influence on the formation of the majority of heavy nuclei due to fission recycling in the r-process. Calculations of beta-delayed and neutron-induced fission rates were performed taking into account different fission barriers and mass formulae were done. It is shown that an increase of fission barriers results in naturally changes of fission rates, but that the absolute values of fission rates are nevertheless sufficiently high and lead to the termination of the r-process. Furthermore it is discussed, that the probability of triple fission could be high for A > 260 and have an affect on the formation on the heaviest nuclei.
        Publication date
        2004-02
        Published in
        Seminar on Fission: Pont D'OyeV
        Other links
        http://hdl.handle.net/2299/14879
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