Anomaly Observed in Subbarrier Fusion-Fission Reactions

  • The fusion-fission cross sections and fragment angular distributions for the systems of 16O+232Th, 16O+238U and 19F+232Th at near-and sub-barrier energies have been measured. The enhancement of fusion-fission cross sections at subbarrier energies is well explained in the framework of coupled-channels theory in which the target static deformations are explicitly taken into account. However, the experimental fragment anisotropies obviously deviate from the predictions of the statistic fission model.
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Liu Zuhua, Zhang Huanqiao, Xu Jincheng, Qian Xing, Qiao Yu, Lin Chengjian and Xu Kan. Anomaly Observed in Subbarrier Fusion-Fission Reactions[J]. Chinese Physics C, 1995, 19(7): 585-590.
Liu Zuhua, Zhang Huanqiao, Xu Jincheng, Qian Xing, Qiao Yu, Lin Chengjian and Xu Kan. Anomaly Observed in Subbarrier Fusion-Fission Reactions[J]. Chinese Physics C, 1995, 19(7): 585-590. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Anomaly Observed in Subbarrier Fusion-Fission Reactions

    Corresponding author: Liu Zuhua,
  • China Institute of Atomic Energy, Beijing, 102413

Abstract: The fusion-fission cross sections and fragment angular distributions for the systems of 16O+232Th, 16O+238U and 19F+232Th at near-and sub-barrier energies have been measured. The enhancement of fusion-fission cross sections at subbarrier energies is well explained in the framework of coupled-channels theory in which the target static deformations are explicitly taken into account. However, the experimental fragment anisotropies obviously deviate from the predictions of the statistic fission model.

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