Study on Dynamic Fusion Barrier in Heavy-Ion Fusion Reactions

TIAN Jun-Long; WU Xi-Zhen; LI Zhu-Xia

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2006, Vol. 30> Issue(5) : 428-434

Study on Dynamic Fusion Barrier in Heavy-Ion Fusion Reactions

China Institute of Atomic Energy, Beijing 102413, China2 Institute of Modern Physics, Shanxi Teachers University, Linfen 041004, China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China4 Institute of Theoretical Physics, Chinese Academic of Science, Beijing 100080, China

Abstract
HTML
Reference
Related

PDF

Abstract：
By means of the improved quantum molecular dynamics model, the incident energy dependent dynamical fusion potential barriers for heavy nucleus reaction systems are investigated. It is found that with decrease of incident energy the lowest dynamic barrier is obtained which approaches to the adiabatic static barrier and with increase of the incident energy the dynamic barrier goes up to the diabatic static barrier. Based on the dynamical study a microscopic understanding of the extra-push in fusion reactions of heavy systems and a new explanation of tunneling process for the fusion at the incident energy below the static and above the lowest dynamic barrier are presented. In order to understand the energy dependence of the dynamical barrier we also pay a great attention to study the neck formation and shape deformation during the dynamic lowering of the barrier.

References

[1]

. Bass R. Nuclear Reactions with Heavy Ion. Springer-Verlag, Berlin, 19802. Bass R. Nucl. Phys., 1974, A213: 453. Kroppe, N S. Atomic Data. Nucl. Data, 1993, 59: 1854. Myers W D, Swiatecki W J. Phy. Rev., 2000, C62: 0446105. Denisov V Y et al. Eur. Phys. J., 2002, A15: 3756. Beckerman M, Salomaa M et al. Phys. Rev. Lett., 1980, 45:1472; Phy. Rev., 1982, C25: 837; Phys. Rev. Lett., 1983,50: 471; Phy. Rev., 1984, C29: 19387. WANG Ning et al. Phy. Rev., 2002, C65: 064608; Phy.Rev., 2003, C67: 024604; Phy. Rev., 2004, C69: 0346088. Vautherin D, Brink D M. Phys. Rev., 1972, C5: 6269. Titin-Schnaider C, Quentin P. Phys. Lett., 1974, B49: 39710. Siwek-Wilczynska K et al. Phy. Rev., 2001, C64: 02461111. Royer G et al. Nucl. Phys., 1985, A444: 47712. Bierman J D et al. Phy. Rev., 1996, C54: 3068

[1]	ZHAI Ji-Yuan , TANG Chuan-Xiang , ZHENG Shu-Xin . Experimental Study on the Beam Dynamics of Micro-Pulse Electron Gun. Chinese Physics C, 2006, 30(S1): 99-101.
[2]	BAO Jing-Dong . Simulating Methods in Nuclear Reaction Dynamics. Chinese Physics C, 2006, 30(S2): 24-28.
[3]	CHEN Yong , HUANG Wen-Hui , TANG Chuan-Xiang . Dynamics Study of the Rhodotron Accelerator. Chinese Physics C, 2005, 29(2): 180-185.
[4]	FENG Zhao-Qing , JIN Gen-Ming , ZHANG Feng-Shou , FU Fen , HUANG Xi . Dynamical Study on Fusion Mechanism near Coulomb Barrier. Chinese Physics C, 2005, 29(12): 1157-1161.
[5]	WU Xi-Zhen , TIAN Jun-Long , WANG Ning , ZHAO Kai , LI Zhu-Xia . Microscopic Study on Dynamic Barrier in Fusion Reactions. Chinese Physics C, 2004, 28(12): 1317-1323.
[6]	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.
[7]	TIAN Jun-Long , WU Xi-Zhen , LI Zhu-Xia , WANG Ning , LIU Fu-Hu . Study on Fusion Potential Barrier in Heavy Ion Reactions Based on the Dynamical Model. Chinese Physics C, 2004, 28(7): 725-732.
[8]	ZHANG Kun-Shi , YIN Jian-Wu , CHEN Gang , LIU Chao , LIU Lian-Shou . Monte Carlo Study for the Dynamical Fluctuations Inside a Single Jet in 2-Jet Events. Chinese Physics C, 2002, 26(2): 158-163.
[9]	ZHANG Ying-Xun , WU Xi-Zhen , LI Zhu-Xia . Dynamical Behaviors of Liquid-Gas Phase Transition in Nuclei. Chinese Physics C, 2002, 26(10): 1065-1071.
[10]	ZENG XiangHua , ZHANG FengShou , LUO YiXiao . Study on the Decay Dynamics of Hot Nuclei. Chinese Physics C, 2000, 24(6): 535-540.
[11]	Liu Hang , Liu Jianye , Zhang Shaoguang , Li Junqing . Multifragmentation Process in HIC Simulated by Modified Quantum Molecular Dynamics. Chinese Physics C, 1995, 19(11): 1040-1046.
[12]	Liu Jianye , Zhang Shaoguang . Dynamical Study on Processes of Intermediate-Energy Heavy Ion Collisions. Chinese Physics C, 1995, 19(1): 53-58.
[13]	Li Junqing , Liu Jianye , Zhao Enguang , Zhu Quanling . Effect of N,Z Dependent Macroscopic Potential to cluster Formation in Quantum Molecular Dynamics. Chinese Physics C, 1994, 18(4): 379-384.
[14]	FU Deji , YANG Yatian , WANG Wenge , XU Gongou . Topological Approach to the Study of Dynamical Symmetry Breaking in IBM System. Chinese Physics C, 1993, 17(11): 1032-1039.
[15]	LIU Jian-Ye , GE Yu-Cheng , GE Ling-Xiao . The Medium Effects in Dynamics Processes of the Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 1991, 15(1): 71-79.
[16]	PAN Feng , CAO Yu-Fang , PAN Zhen-Yong . An Investigation of G Pair Included Fermion Dynamical Symmetry Model for Medium and Heavy Mass Nuclei. Chinese Physics C, 1991, 15(7): 647-654.
[17]	ZHU Chao-Yuan , HU Shi-Ke . EFFECTIVE-POTENTIAL STUDY OF DYNAMICAL CHIRAL SYMMETRY BREAKING IN QUANTUM CHROMODYNAMICS. Chinese Physics C, 1987, 11(4): 451-461.
[18]	WG SHU-HIUNG . BEAM DYNAMICS DESIGN STUDY FOR RFQ LINAC. Chinese Physics C, 1982, 6(4): 428-434.
[19]	HE GUO-ZHU . NUCLEAR CHARGE DYNAMICS AND NUCLEAR POTENTIALS. Chinese Physics C, 1981, 5(2): 227-231.
[20]	KUANG YU-PING , YI YU-PING . DYNAMICAL SYMMETRY BREAKINGS IN QUANTUM CHROMODYNAMICS. Chinese Physics C, 1978, 2(6): 488-500.

Access

Get Citation

TIAN Jun-Long, WU Xi-Zhen and LI Zhu-Xia. Study on Dynamic Fusion Barrier in Heavy-Ion Fusion Reactions[J]. Chinese Physics C, 2006, 30(5): 428-434.

TIAN Jun-Long, WU Xi-Zhen and LI Zhu-Xia. Study on Dynamic Fusion Barrier in Heavy-Ion Fusion Reactions[J]. Chinese Physics C, 2006, 30(5): 428-434. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2005-07-30
Revised: 1900-01-01

Article Metric

Article Views(4155)
PDF Downloads(661)
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

Study on Dynamic Fusion Barrier in Heavy-Ion Fusion Reactions

Corresponding author: TIAN Jun-Long,

China Institute of Atomic Energy, Beijing 102413, China2 Institute of Modern Physics, Shanxi Teachers University, Linfen 041004, China3 Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000, China4 Institute of Theoretical Physics, Chinese Academic of Science, Beijing 100080, China

Received Date: 2005-07-30
Accepted Date: 1900-01-01
Available Online: 2006-05-05

Abstract: By means of the improved quantum molecular dynamics model, the incident energy dependent dynamical fusion potential barriers for heavy nucleus reaction systems are investigated. It is found that with decrease of incident energy the lowest dynamic barrier is obtained which approaches to the adiabatic static barrier and with increase of the incident energy the dynamic barrier goes up to the diabatic static barrier. Based on the dynamical study a microscopic understanding of the extra-push in fusion reactions of heavy systems and a new explanation of tunneling process for the fusion at the incident energy below the static and above the lowest dynamic barrier are presented. In order to understand the energy dependence of the dynamical barrier we also pay a great attention to study the neck formation and shape deformation during the dynamic lowering of the barrier.