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

Autor: I. Yu. Sedykh, V. Yu. Denisov
Rok vydání: 2018
Předmět:
Zdroj: The European Physical Journal A. 54
ISSN: 1434-601X
1434-6001
Popis: 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.
Databáze: OpenAIRE
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