Anomaly Observed in Subbarrier Fusion-Fission Reactions

Liu Zuhua; Zhang Huanqiao; Xu Jincheng; Qian Xing; Qiao Yu; Lin Chengjian; Xu Kan

Chinese Physics C> 1995, Vol. 19> Issue(7) : 585-590

Anomaly Observed in Subbarrier Fusion-Fission Reactions

China Institute of Atomic Energy, Beijing, 102413

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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.

References

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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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沈阳化工大学材料科学与工程学院沈阳 110142

Anomaly Observed in Subbarrier Fusion-Fission Reactions

Corresponding author: Liu Zuhua,

China Institute of Atomic Energy, Beijing, 102413

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1995-07-05

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.