Preequilibrium Fission

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

Chinese Physics C> 1996, Vol. 20> Issue(2) : 107-112

Preequilibrium Fission

China Institute of Atomic Energy,Beijing 102413

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Abstract：
It is verified experimentally that the heavy-ion-induced fusionfission reactions are entrance-channel mass asymmetry dependent.This dependence means that in some cases,the fused composite systems havenot forgot the history of it's formation.Based on the experimental observations,we have put forward a preequilibrium fission model.In framework of this model,we have successfully explained the anomalous fragment anisotropies from fusion-fission at near-andsub-barrier energies.

References

[1]

A.Bohr,“On the Theory of Nuclear Fission”,Proc. Int. Con. on Peaceful Uses of Atomic Energy, New York, 2（1956）151.[2]I.Halpern,V.M.Struntisky,“Angular distributions in particle induced fission at medium energies”,Proc. Int. Con. Peaceful Uses of Atomic Energy, New York, 15（1958）408.[3]L.C.Vaz,J.M.Alexander,Phys.Rap.,97（1983）1.[4]B.B.Back,Phys.Rev.,C31（1985）2104.[5]C.Gregoire,C.Ngo,V.Remand,Phys.Lett,B99（1985）17.[6]W.J.Swiaticki,Phys.Scr.,24（1981）113.[7]R.Vandenbosch,T.Murakami,C.-C.Shahm et al.,Phys.Rev.Lett.,56（1986）1234.[8]H.Q.Zhang,J.C.Xu,Z.H.Liu et al,Phys.Lett.,B218（1989）133.[9]C.H.Dasso,S.Landowne,A.Winther,Nucl.Phys.,A405（1983）381;A407（1983）221.[10]C.Y.Wong,Phys.Rev.Lett.,31（1973）766.[11]D.E.DiGregorio,R.G.Stokstad,Phys.Rev.,C43（1991）265.[12]R.Vandenbosch,Ann.Rev.Nucl.Part.Sci.,42（1992）447.[13]Z.H.Liu,H.Q.Zhang,J.C.Xu et al.,Phys.Rev.,C50（1994）1717.[14]V.S.Ramamurthy,S.S.Kapoor,inProc.Int.Con.on Nuclear Physics,Harrogate,United Kingdom,1986.[15]H.Q.Zhang,Z.H.Liu,J.C.Xu et al.,Phys.Rev.,C49（1994）926.[16]R.F.Reising,G.L.Bate. J. R. Huizenga, Phys. Rev., 141(1966) 1161.[17]B. B. Back, R. R. Betts, P. Fernandez et al., "Fission at Sub-barrier Energies", Proceedings of Sixth Winter Workshop on Nuclear Dynamics (Jackson Hole, Wyoming, 1990).[18]B. B. Back, S. Bjrnholm, T. Dssing et al., Phys. Rev., C41(1990)1495.[19]A. J. Sierk. Phys. Rev., C33(1986)2039.[20]H. Rossner, D. J. Hinde, J. R. Leigh et al., Phys. Rev., C45(1992)719.[21]A. Saxena, S. Kailas, A. Karnik, et al., Phys. Rev., C47(1993)403.[22]T. Dssing, J. Randrup. Nucl. Phys., A433(1985)215.[23]Z. H. Liu, H. Q. Zhang, C. J. Xu et al., Phys. Lett., B353(1995)173.

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Liu Zuhua, Zhang Huanqiao, Xu Jincheng, Qian Xing, Qiao Yu and Lin Chengjian. Preequilibrium Fission[J]. Chinese Physics C, 1996, 20(2): 107-112.

Liu Zuhua, Zhang Huanqiao, Xu Jincheng, Qian Xing, Qiao Yu and Lin Chengjian. Preequilibrium Fission[J]. Chinese Physics C, 1996, 20(2): 107-112. shu

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Received: 1900-01-01
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preequilibrium Fission

Corresponding author: Liu Zuhua,

China Institute of Atomic Energy,Beijing 102413

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1996-02-05

Abstract: It is verified experimentally that the heavy-ion-induced fusionfission reactions are entrance-channel mass asymmetry dependent.This dependence means that in some cases,the fused composite systems havenot forgot the history of it's formation.Based on the experimental observations,we have put forward a preequilibrium fission model.In framework of this model,we have successfully explained the anomalous fragment anisotropies from fusion-fission at near-andsub-barrier energies.

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