Fission and the <Emphasis Type="Italic">r</Emphasis>-process: The rates of induced and delayed fission |
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| Authors: | I V Panov F -K Thielemann |
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| Institution: | (1) Institute for Theoretical and Experimental Physics, ul. Bol’shaya Cheremushkinskaya 25, Moscow, 117259, Russia;(2) University of Basel, Basel, Switzerland |
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| Abstract: | The most recent fission-barrier calculations based on improved mass formulas indicate that the adopted values are underestimated. We analyze the dependence of the fission rates on the fission barrier and show that an increase in the fission barriers leads not so much to a decrease in the importance of fission as to the possible synthesis of heavier elements in the r-process. The rates of induced fission of most isotopes with Z>80 at astrophysical energies have been calculated for the first time for fission barriers obtained from different theoretical models. |
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| Keywords: | nuclear astrophysics nucleosynthesis r-process supernovae and supernova remnants |
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