＂Neck＂ formation and Fragmentation in Intermediate Energy Heavy-Lon Collisions

Chen Liewen; Ge Lingxiao; Zhang Fengshou

Chinese Physics C> 1997, Vol. 21> Issue(11) : 1018-1023

＂Neck＂ formation and Fragmentation in Intermediate Energy Heavy-Lon Collisions

Institute of Modern Physic, the chinese Academy of SCIENCES, Lanzhou 730000

Abstract
HTML
Reference
Related

PDF

Abstract：
Under different impact parameters, the collision system of 30MeV/u ⁴⁰Ca+⁴⁰Ca is investigated in terms of QltllD model. It is .shown that the number of IMFs is the largest at impact pararneter b=6fm, which is due to the formation of ＂neck＂ in collision process. Meanwhile, it is found the. in the process of fonmadon of ＂neck＂, the growth of the relative density fluctuation of the reaction system is very slow and the saturation value is small, which imply the character of shape instability.

References

[1]

L. G. Morreto iet al/i., iPhys/i. iRev/i. iLett/i., 69(1992)1884.[2]W. Bauer, G. F. Berstch, H. Schulz, iPhys/i. iRev/i. iLett/i., 69(1992)467.[3]D. E. Fields iet al/i., iPhys/i. iRev/i. Left., 69(1992)3713.[4]M. Colonna iet al/i., in XXXII Inter. Winter Meeting on Nucl. Phys., Bormio, Italy, 24-28 Jun. 1994,p232.[5]C. Montoya iet al/i., in XXXII Inter. Winter Meeting on iNucl/i. iPhys/i., Bormio, Italy,24-28 Jun.1994, p506.[6]W. U. Schroder, J. R Huizenga, in Treatise on Heavy-Ion Science, edited by D. A. Bromley(Plenum, New York, 1984)Vol. 2 and references therein.BR[7]陈列文，张晓东，葛凌霄，高能物理与核物理，20(1996)1091.[8]张晓东，葛凌霄高能物理与核物理，19(1995)951[9]H. Horiuchi, T. Maruyama, A. Ohnishi, in Inter. Symp. on Heavy-Ion iPhys/i. and Application, Lanzhou,China, Oct. 1990,p25.[10]K. Hagel iet al/i., iPhys/i. iRev/i. iLett/i., 68(1992)2141.[11]M. B. Tsang, in XXXII Inter. Winter Meeting on Nucl. Phys., Bormio, Italy, 24-28 Jun. 1994,p512.

[1]	LI Zhu-Xia , ZHANG Ying-Xun , LI Qing-Feng , ZHAO Kai , WU Xi-Zhen . Isospin Effect in Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2004, 28(12): 1343-1348.
[2]	XING Yong-Zhong , LIU Jian-Ye , GUO Wen-Jun , ZUO Wei , LI Xi-Guo . Role of Momentum Dependent Interaction on the Isospin Effects of Fragmentations and Dissipations at Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2002, 26(S1): 63-72.
[3]	CHEN Xiao-Fan , CHEN Zhi-Lai , YANG Xue-Dong , LI Zhu-Peng . Distributions of Realative Momentum of Pion Pairs in Relativistic Heavy Ion Collisions. Chinese Physics C, 2001, 25(10): 1002-1005.
[4]	ZHANG Hu-Yong , MA Yu-Gang , YU Li-Ping , SHEN Wen-Qing , CAI Xiang-Zhou , FANG De-Qing , HU Peng-Yun , ZHONG Chen , HAN Ding-Ding . Directed and Elliptic Flow in Heavy Ion Collisions. Chinese Physics C, 2001, 25(12): 1184-1190.
[5]	FANG DeQing , SHEN WenQing , FENG Jun , CAI XiangZhou , SU QianMin , MA YuGang . Isospin Effect of Fragmentation Reaction and Its Disappearance in Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2000, 24(10): 949-954.
[6]	ZHAO Qiang , LIU JianYe , ZHANG FengShou , WANG ShunJin , ZUO Wei , CHEN LieWen . Isospin Effect in Multifragmentation Process of Heavy Ion Collisions at Intermediate Energy. Chinese Physics C, 2000, 24(11): 1024-1029.
[7]	Lu Zhongdao , Ye Wei , Shen Wenqing . Collective Rotation Effect in Heavy Ion Collision and the Characteristics of Reaction. Chinese Physics C, 1999, 23(10): 1010-1014.
[8]	Qi Zhong , Guo Zhongyan , Zhan Wenlong , Liu Guanhua , Zhou Jianqun , Zhang Wansheng , Wang Jinchuan , Lin Yuangen , Zhu Yongtai , Xu Hushan , Xie Yuanxiang . A Scintillant Multidetector for Measurement in Heavy Ion Reactions at Intermediate Energy. Chinese Physics C, 1997, 21(7): 577-582.
[9]	Chen Liewen , Zhang Xiaodong , Ge Lingxiao . Isospin Effects on Pre-equilibrium NucleonEmission in Heavy Ion Collisions. Chinese Physics C, 1996, 20(12): 1091-1096.
[10]	Li Junqing , Yuan Xiuqing , Liu Jianye , Zhu Jieding . Behavior of Individual Nucleon in Intermediate Energy Heavy Ion Reactions. Chinese Physics C, 1996, 20(9): 839-846.
[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]	Zhang Shaoguang , Liu Jianye . Multifragmentation in Heavy Ion Collisions. Chinese Physics C, 1994, 18(S1): 64-70.
[13]	FENG Jun , SHEN Wen-Qing , MA Yu-Gang , ZHAN Wen-Long , ZHU Yong-Tai , GUO Zhong-Yan . A Method For Identifying Medium-Heavy Products of Heavy Ion Reaction At SPEG Spectrometer. Chinese Physics C, 1993, 17(9): 769-774.
[14]	Yuan Suanggui , Xu Shuwei , Pan Qiangyan , Qu Xiulan . Functions of the ALICE Code and Its Utilization. Chinese Physics C, 1993, 17(12): 1065-1069.
[15]	ZHANG Feng-Shou , GE Ling-Xiao . Excitation Energy in Heavy Ion Collisions. Chinese Physics C, 1992, 16(7): 666-669.
[16]	GE Ling-Xiao , ZENG Xiang-Hua , LIU Jian-Ye , ZENG Bao-Sheng . THE EFFECT OF COMPRESSION AND THERMAL EXCITATION FOR FRAGMENTATION DYNAMICS PROCESS OF HIC. Chinese Physics C, 1990, 14(3): 278-281.
[17]	WANG Bing , ZENG Yao-Wu , SHEN Wen-Qing , ZHAN Wen-Long , ZHOU Jian-Qun , FENG En-Pu , ZHU Yong-Tai , Feng Jun . A LIGHT-PARTICLE MULTIDETECTOR FOR INTERMEDIATE ENERGY HEAVY-ION REACTION. Chinese Physics C, 1990, 14(12): 1121-1125.
[18]	WU Guo-Hua , GE Ling-Xiao . EMISSION OF LIGHT PARTICLES IN HEAVY ION COLLISIONS. Chinese Physics C, 1988, 12(4): 541-547.
[19]	GE Ling-Xiao , LIU Jian-Ye , WANG Shun-Jin . TWO-BODY EFFECT IN HEAVY ION COLLISION. Chinese Physics C, 1987, 11(5): 695-698.
[20]	WANG Zheng-Da . A FURTHER EXPLORATION FOR MECHANISM OF ANGULAR MOMENTUM TRANSFER IN HEAVY ION REACTION. Chinese Physics C, 1984, 8(5): 596-601.

Access

Get Citation

Chen Liewen, Ge Lingxiao and Zhang Fengshou. ＂Neck＂ formation and Fragmentation in Intermediate Energy Heavy-Lon Collisions[J]. Chinese Physics C, 1997, 21(11): 1018-1023.

Chen Liewen, Ge Lingxiao and Zhang Fengshou. ＂Neck＂ formation and Fragmentation in Intermediate Energy Heavy-Lon Collisions[J]. Chinese Physics C, 1997, 21(11): 1018-1023. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(2688)
PDF Downloads(504)
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

＂Neck＂ formation and Fragmentation in Intermediate Energy Heavy-Lon Collisions

Corresponding author: Chen Liewen,

Institute of Modern Physic, the chinese Academy of SCIENCES, Lanzhou 730000

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1997-11-05

Abstract: Under different impact parameters, the collision system of 30MeV/u ⁴⁰Ca+⁴⁰Ca is investigated in terms of QltllD model. It is .shown that the number of IMFs is the largest at impact pararneter b=6fm, which is due to the formation of ＂neck＂ in collision process. Meanwhile, it is found the. in the process of fonmadon of ＂neck＂, the growth of the relative density fluctuation of the reaction system is very slow and the saturation value is small, which imply the character of shape instability.

HTML

Reference (1)

＂Neck＂ formation and Fragmentation in Intermediate Energy Heavy-Lon Collisions

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article