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Calculation of the ratio \(\Gamma_{n} (E)/ \Gamma_{f} (E)\) in various approaches for the fission width

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Abstract.

The ratio \(\Gamma_{{\rm n}}(E)/\Gamma_{{\rm f}}(E)\) is calculated using different expressions for the fission width, which take into account and ignore the dependence of the fission barrier on the excitation energy. A strong influence of the energy-dependent fission barrier on the ratio \( \Gamma_{{\rm n}}(E)/\Gamma_{{\rm f}}(E)\) is shown. The dependence of the synthesis of superheavy nuclei on the ratio \( \Gamma_{{\rm n}}(E)/\Gamma_{{\rm f}}(E)\) is discussed. The experimental values of the ratio \( \Gamma_{{\rm f}} (E)/\Gamma_{{\rm n}}(E)\) in 188Os and 210, 212Po are well described using the fission width with a barrier dependent on the excitation energy. The values of the fission barrier height for these nuclei are estimated.

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Correspondence to V. Yu. Denisov.

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Communicated by V. Somà

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Denisov, V.Y., Sedykh, I.Y. Calculation of the ratio \(\Gamma_{n} (E)/ \Gamma_{f} (E)\) in various approaches for the fission width. Eur. Phys. J. A 54, 231 (2018). https://doi.org/10.1140/epja/i2018-12660-9

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