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Investigating nuclear dissipation properties at large deformations via excitation energy at scission

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Abstract

Using the stochastic Langevin model coupled with a statistical decay model, we study nuclear dissipation properties at large deformations with excitation energy at scission (\(E_{\mathrm {sc}}^*\)) measured in experiments. It is found that the postsaddle dissipation strength required to fit \(E_{\mathrm {sc}}^*\) data is 12 \(\times 10^{21}\) s\(^{-1}\) for \(^{254,256} \)Fm and 6 \(\times 10^{21}\) s\(^{-1}\) for \(^{189}\)Au, which has a smaller postsaddle deformation than the former heavy nucleus, showing a rise of nuclear dissipation strength with increasing deformation.

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Authors and Affiliations

  1. Department of Physics, Southeast University, Nanjing, 210096, China

    Jian Tian & Wei Ye

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  1. Jian Tian
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  2. Wei Ye
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Correspondence to Wei Ye.

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This work was supported by the National Nature Science Foundation of China (No. 11575044).

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Tian, J., Ye, W. Investigating nuclear dissipation properties at large deformations via excitation energy at scission. NUCL SCI TECH 27, 145 (2016). https://doi.org/10.1007/s41365-016-0146-y

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  • DOI: https://doi.org/10.1007/s41365-016-0146-y

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