Deformation Potentials in Symmetric Multi-Fold Fission and Their Temperature-Dependence

Dai Guangxi

Chinese Physics C> 1995, Vol. 19> Issue(5) : 447-454

Deformation Potentials in Symmetric Multi-Fold Fission and Their Temperature-Dependence

Dai Guangxi ^,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000Cyclotron Institute and Physics Deportment, Texas A&M University,Coollege Statin, Texas 77843

Abstract
HTML
Reference
Related

PDF

Abstract：
Deformation consisting of a series of quasi-Cassinian rotating bodies surrounding a inner joined sphere is assumed to be that associated with symmetric multifold fissions into two or more fragments. The deformation shapes with only one parameter evolve smoothly from that of an initial spherical nucleus to the scission point. The shapes are calculated using a quasi-Cassinian ovaloid shape parameterization, which has been demonstrated to be a good approximation for binary fission.Using this parameterization the deformation potential and barriers in 2,3,4,6 and 8-fold multifold fissions are calculated. Proximity effects are included. The temperature dependence of these fission barriers is considered too. Finally the fission dynamics delay effects on the multi-fission processes is also discussed.

References

[1]

NuclearDynamics,Nuclear Dissembly,J.B.Natowitz editor,World Scientific（1989）.[2]P.Roussel-Chomaz,N.Colonna,Y.Blumenfeldetal.Nucl,Phys,A551（1993）508.[3]D.Hilscher,H.Rossner,Hahn-Meitner Institute Preprint{HMI-92-P2}-Hill（1992）.[4]V.V.Pashkevich,Nucl.Phys,A169（1971）275.[5]戴光曦、李伟生，高能物理与核物理12（1988）669;G.Dai,W.Li, esePhys.8（988）427. [6]G.Dai,AIP Confer.Proc.250NIKKO 1991 Japan,383（1991）.[7]A.Diehl,W.Greiner,Nucl.Phys,A229（1974）29.[8]F.Haddad,G.Royer,J.PhysG:Nucl.Part.Phys.,18（1992）L153.[9]J.Blocki,J.Randrup,W.J.Swiatecki,C.F.Tsang,Ann.Phys,NY105（1977）427.[10]H.R.Jaqaman,Phys.Rev,C40（1989）1677.[11]N.Carjan,Nucl.Phys.,A452（1986）381.

[1]	FENG Zhao-Qing , JIN Gen-Ming , FU Fen , LI Jun-Qing . Isotopic Dependence of Production Cross Sections of Superheavy Nuclei in Hot Fusion Reactions. Chinese Physics C, 2007, 31(4): 366-370.
[2]	ZHANG Fang , ZUO Wei , YONG Gao-Chan . Probinhg the High Density Behavior of the Symmetry Energy by Using Proton Elliptic Flow. Chinese Physics C, 2007, 31(8): 741-744.
[3]	YE Wei . Particle Evaporation in the Fission Process of Nuclei ^100,104Sn. Chinese Physics C, 2006, 30(3): 217-219.
[4]	XU Jun , CHEN Lie-Wen , LI Bao-An , MA Hong-Ru . Temperature Dependence of the Nuclear Symmetry Energy and Symmetry Free Energy. Chinese Physics C, 2006, 30(S2): 265-267.
[5]	YE Wei . Possible Dependence of Dissipation Strength on Angular Momentum. Chinese Physics C, 2006, 30(8): 759-760.
[6]	YONG Gao-Chan , CHEN Lie-Wen , LI Bao-An , ZUO Wei . Pinning down the Density-Dependent Symmetry Energy by Using Double n/p Ratio. Chinese Physics C, 2006, 30(7): 642-645.
[7]	ZUO Wei , CHEN Ji-Yan , LI Bao-An , LUO Pei-Yan , Lombardo U . Momentum and Density Dependence of Isospin Symmetry Potential in Asymmetric Nuclear Matter. Chinese Physics C, 2005, 29(9): 881-885.
[8]	LIU Ling , LU Kun , BAO Jing-Dong . Dynamic Back-Streaming Effects around Fusion and Fission Barriers of Heavy Nuclei. Chinese Physics C, 2004, 28(8): 854-858.
[9]	ZUO Wei , LIU Jian-Ye , LI Jun-Qing . Properties of Isospin Asymmetric Nuclear Matter and Extended BHF Approach (Ⅵ)Proton and Neutron Mean Free Paths and Their Isospin Dependence. Chinese Physics C, 2003, 27(10): 888-891.
[10]	ZHANG Hui-Lan , LIU Lian-Shou . Dependence of Entropy Index on the Width and Shape of Multiplicity Distributions. Chinese Physics C, 2003, 27(9): 803-807.
[11]	ZHANG BenWei , HOU DeFu , LI JiaRong . Dependence of ρ Meson mass on Temperature and Chemical Potential. Chinese Physics C, 2000, 24(5): 457-461.
[12]	WU Yuan-Fang , LIU Lian-Shou . On the Moment-Order,Multiplicity and Transverse-Momentum Dependences of Intermittency in Hadron-Hadron Collisions. Chinese Physics C, 1991, 15(9): 822-826.
[13]	SA Ben-Hao , ZHENG Yu-Ming , ZHANG Xiao-Zhe . DEPENDENCE OF PHASE TRANSITION ON THE MASS NUMBER OF HOT NUCLEI. Chinese Physics C, 1990, 14(6): 555-560.
[14]	ZHUANG Pen-Fei , LIU Lian-Shou . TARGET MASS DEPENDENCE AND NON-LINEAR EFFECTS IN HIGH ENERGY HEAVY ION COLLISIONS. Chinese Physics C, 1990, 14(3): 240-246.
[15]	CHEN Ji-Qiang , LONG Qi-Wei , WANG Ke-Lin . THREE STATE MODEL OF VACANCIES AND SMALL VACANCY CLUSTERS AND TEMPERATURE DEPENDENCE OF SPECIFIC TRAPPING RATE. Chinese Physics C, 1990, 14(2): 97-101.
[16]	LAI Xiao-Ping , XIE Qu-Bing , FANG Hai-Ping . SEMI-INCL USIVE DISTRIBUTIONS AND RAPIDITY DEPENDENCE OF MULTIPLICITY DISTRIBUTIONS IN e⁺e^－ ANNIHILATION INTO TWO JETS. Chinese Physics C, 1990, 14(1): 24-30.
[17]	WU Yuan-Fang , LIU Lian-Shou . EVEN-ODD CHARGED MULTIPLICITY DISTRIBUTIONS AND ENERGY DEPENDENCE OF NORMALIZED MULTIPLICITY MOMENTS IN DIFERENT RAPIDITY WINDOWS. Chinese Physics C, 1990, 14(2): 145-151.
[18]	CHEN Ke-Liang , LIU Guo-Xing , ZHENG Ji-Wen , WANG Su-Fang , FAN Zhi-Guo . MEASUREMENTS OF ANGULAR MOMENTUM EFFECT OF FISSION BARRIER. Chinese Physics C, 1988, 12(5): 658-664.
[19]	CAI Xu , WU Yuan-Fang , LIU Lian-Shou . ENERGY DEPENDENCE OF MULTIPLICITY MOMENTS AND THREE FIRE BALL MODEL. Chinese Physics C, 1987, 11(4): 554-557.
[20]	DAI Guang-Xi , , , , , , , , , , , . THE SHELL EFFECT IN SEQUENTIAL FISSION INDUCED BY ²³⁸U WITH ENERGY JUST ABOVE COULOMB BARRIER. Chinese Physics C, 1985, 9(4): 454-460.

Access

Get Citation

Dai Guangxi. Deformation Potentials in Symmetric Multi-Fold Fission and Their Temperature-Dependence[J]. Chinese Physics C, 1995, 19(5): 447-454.

Dai Guangxi. Deformation Potentials in Symmetric Multi-Fold Fission and Their Temperature-Dependence[J]. Chinese Physics C, 1995, 19(5): 447-454. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3475)
PDF Downloads(531)
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

Deformation Potentials in Symmetric Multi-Fold Fission and Their Temperature-Dependence

Dai Guangxi ^,

Corresponding author: Dai Guangxi,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000Cyclotron Institute and Physics Deportment, Texas A&M University,Coollege Statin, Texas 77843

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

Abstract: Deformation consisting of a series of quasi-Cassinian rotating bodies surrounding a inner joined sphere is assumed to be that associated with symmetric multifold fissions into two or more fragments. The deformation shapes with only one parameter evolve smoothly from that of an initial spherical nucleus to the scission point. The shapes are calculated using a quasi-Cassinian ovaloid shape parameterization, which has been demonstrated to be a good approximation for binary fission.Using this parameterization the deformation potential and barriers in 2,3,4,6 and 8-fold multifold fissions are calculated. Proximity effects are included. The temperature dependence of these fission barriers is considered too. Finally the fission dynamics delay effects on the multi-fission processes is also discussed.