Chinese Physics C > 1992, Vol. 16 > Issue(7): 651-657

The Shape and Potential of Hot Nuclei in Symmetry Ternary Fission

DAI Guang-Xi^,

Institute of Modern Physics,Academia Sinica,Lanzhou 730000

Abstract
HTML
Reference
Related

PDF

Abstract：
A symmetry ternary fission (STF) shape with a spherical residue plus 3 rose-leaf-like rotating bodies (SRRL) has been proposed to describe the large deformation process from sphere to scission point with one deformation paramenter.By LDM,the relative Coulomb and surface potential with sharp surface have been calculated; as a example in several nuclei we present STF collective potentials,from which the shape and barrier height in saddle point and TKE determined by coulomb energy in scission are given.Also the shift of C.M.for each prefragment in STF process and the deformation energy for new born fragment are obtained.Considering the dependence of nuclear surface tension on nuclear temperature,the STF barrier height for hot nuclei would be decreased and then the STF probabilities over the barrier would increase too.The calculated results in the SRRL have been compared with previous results by oblate shape model.

References

[1]

金今和张云鄂，中国大百科全书，物理学，II卷，853页，(1987.7).[2] W. J. Swiatecki, et al., Second UN Intern. Conf. on the Peaceful Uses of Atomic Energy(Geneva, 1958) vol. 15, p. 248,[3] P, Schall, P. Heeg, et al., Phys. Lett., 191(1987), 339.[4] V, P. Perelygin, et al., Nucl. Phys., A127(1969),577.[5] H. Diehl and W. Greiner, Nucl. Phys A229(1974), 29.[6] 戴光曦，刘希明和刘国兴，高能物理与核物理，11(1987)，515, G. Dai, X. Liu and G. Liu, Chinese Phys.,8(1988),427.[7] 戴光曦和李伟生，高能物理与核物理，12(1988)， 669. Dai Guanggi and Li Weisheng, High Energ.Phys and Nucl. Phys., 12(1988)399.[8] V.S. Stavinsky, et al., Nucl. Phys.(USSR), 71(1968), 1051.[9] S. Levit, Nucl. Phys., A437(1985),426.

[1]	ZUO Wei,LU Guang-Cheng,LI Zeng-Hua,LUO Pei-Yan. Critical Temperature of Lequid-gas Phase Transition for Hot Nuclear Matter and Three-body Force Effect. Chinese Physics C, 2005, 29(11): 1061-1066.
[2]	ZUO Wei,LU Guang-Cheng,LI Zeng-Hua,LUO Pei-Yan. Rearrangement Contribution to Single Nucleon Potential in Hot Nuclear Matter and Three-body Force Effect. Chinese Physics C, 2005, 29(12): 1162-1166.
[3]	SUN Bao-Gen,HE Duo-Hui,LU Ping,WANG Jun-Hua,GUO Cong-Liang,WANG Yong,CAO Yong,LI Ji-Hao,ZHENG Pu. Development of a Split Photon Beam Position Monitor for HLS. Chinese Physics C, 2004, 28(2): 210-214.
[4]	BAN Shu-Fang,MENG Jie. Nuclear Symmetry Energy for A=48 Isobars in Relativistic Mean Field Theory. Chinese Physics C, 2004, 28(S1): 66-68.
[5]	Medina Ablikim,HUANG Wei-Cheng,. New Realization of N=2 Supersymmetric QuantumMechanics and Shape Invariance. Chinese Physics C, 2002, 26(4): 338-345.
[6]	WANG Yong-Gang,LIU Xi-Ming,ZHOU Jian-Jun. Angular Asymmetry of Multiplicity in High Energy e⁺e^－Annihilation to Three Jet Events. Chinese Physics C, 2001, 25(1): 6-10.
[7]	Xu Jinzhang,Wang Zixing,Chen Xignqu,Xing Zheng. Study of Nuclear Behavior in Axially-Symmetric Superdeformation and Triaxial Superdeformation. Chinese Physics C, 1999, 23(11): 1102-1107.
[8]	Dai Guangxi,Wu Heyu,Fu Yanbiao,Duan Limin,He Zhiyong,Li Zuyu,Zhang Baoguo,Liu Guoxing. Two Modes in Three-fold Fragmentation of hot Nuclei. Chinese Physics C, 1999, 23(1): 51-58.
[9]	Han Hongyin,Huang Shengnian,Shen Guanren,Qiao Ying,Sun Gang. Anomalies of Neutron and γ-Ray Emission in Ternary Fission of²⁵²Cf. Chinese Physics C, 1998, 22(3): 193-199.
[10]	Xie Wenfang,Bao Chengguang. Effect of Symmetry on Structure of 3-Fermion Systems With Spin S=1/2. Chinese Physics C, 1996, 20(1): 92-96.
[11]	Dai Guangxi,Wu Heyu,Duan Limin,Li Zuyu,He Zhiyong,Luo Qingzheng,Zhang Baoguo. The Threefold Fragmentation of Hot Nuclei With Medium Mass Number. Chinese Physics C, 1996, 20(7): 588-595.
[12]	Dai Guangxi. Deformation Potentials in Symmetric Multi-Fold Fission and Their Temperature-Dependence. Chinese Physics C, 1995, 19(5): 447-454.
[13]	Ruan Wenying,Bac Chengguang. The Effect of Symmetry on The Structures of Three-Body Systems. Chinese Physics C, 1994, 18(1): 74-80.
[14]	Wu Heyu,Dai Guangxi. Ternary Fission with Cascade Fission Model. Chinese Physics C, 1994, 18(8): 730-735.
[15]	WU He-Yu,DAI Guang-Xi,CAI Wei,QI Yu-Jin,YAN De-Hong,ZHANG Bao-Guo,DANG Bing-Rong,LUO Qin-Zheng,QIAN Xing,WEN Wan-Xin. Study of Ternary Fission Produced in¹²C Bombarding²⁰⁹Bi Target with Medium Energy. Chinese Physics C, 1993, 17(8): 680-684.
[16]	XIE Shu-Qin,ZHANG Qi-Ren. AN SU(3) SYMMETRY IN THE TRIBARYON SYSTEM. Chinese Physics C, 1988, 12(5): 673-682.
[17]	WU Chong-Shi,ZENG Jin-Yan. NUCLEAR PAIRING PHASE TRANSITION. Chinese Physics C, 1988, 12(1): 95-101.
[18]	DAI Guang-Xi,LI Wei-Sheng. EXPLORATION OF OPTIMUM SHAPE IN SYMMETRY FISSION. Chinese Physics C, 1988, 12(5): 669-672.
[19]	LI YANG-GUO,WANG WEI-WEI,RUAN TU-NAN. SYMMETRICAL ANALYSIS OF⁹Be AND¹²C HYPERNUCLEI. Chinese Physics C, 1982, 6(1): 64-68.
[20]	Zhang Jin-ye. WHAT ARE REALLY THE PROPERTIES OF THE TRIPLE BAND FORKING IN⁶⁸Ge?. Chinese Physics C, 1980, 4(5): 649-651.

Access

Get Citation

DAI Guang-Xi. The Shape and Potential of Hot Nuclei in Symmetry Ternary Fission[J]. Chinese Physics C, 1992, 16(7): 651-657.

DAI Guang-Xi. The Shape and Potential of Hot Nuclei in Symmetry Ternary Fission[J]. Chinese Physics C, 1992, 16(7): 651-657. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1900-01-01
Revised: 1900-01-01

Article Metric

Article Views(3793)
PDF Downloads(414)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者:陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

The Shape and Potential of Hot Nuclei in Symmetry Ternary Fission

DAI Guang-Xi^,

Corresponding author:DAI Guang-Xi,

Institute of Modern Physics,Academia Sinica,Lanzhou 730000

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1992-07-05

Abstract:A symmetry ternary fission (STF) shape with a spherical residue plus 3 rose-leaf-like rotating bodies (SRRL) has been proposed to describe the large deformation process from sphere to scission point with one deformation paramenter.By LDM,the relative Coulomb and surface potential with sharp surface have been calculated; as a example in several nuclei we present STF collective potentials,from which the shape and barrier height in saddle point and TKE determined by coulomb energy in scission are given.Also the shift of C.M.for each prefragment in STF process and the deformation energy for new born fragment are obtained.Considering the dependence of nuclear surface tension on nuclear temperature,the STF barrier height for hot nuclei would be decreased and then the STF probabilities over the barrier would increase too.The calculated results in the SRRL have been compared with previous results by oblate shape model.