Nuclear Friction Determined with He-ion Induced Fission Excitation Functions
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Graphical Abstract
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Abstract
The stochastic approach to ssion is employed to analyze measured ssion excitation functions in the reactions 3He+197Au, 3He+208Pb and 3He+186W. A pre-saddle friction strength of about 4 x 1021 s-1is extracted by comparing theoretical calculations with experimental data. The important role of level-density parameters in accurately determining the strength of nuclear friction is revealed.It is further shown that high-energy conditions can enhance the sensitivity of ssion cross sections to nuclear dissipation.
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