Isospin Effect of Multifragmentation and Critical Phenomena in Finite Nuclei

FENG Zhao-Qing; ZHANG Feng-Shou; HUANG Xi; JIN Gen-Ming; LI Wen-Fei

Chinese Physics C> 2005, Vol. 29> Issue(6) : 577-582

Isospin Effect of Multifragmentation and Critical Phenomena in Finite Nuclei

Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China2 Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China3 Institute of Low Energy Nuclear Physics,Beijing Normal University,Beijing 100875,China4 Department of Physics,Nanjing University,Nanjing 2100935 Graduate school,Chinese Academy of Sciences,Beijing 100049,China

Abstract
HTML
Reference
Related

PDF

Abstract：
Isospin effect of multifragmentation for the finite nuclei 112Sn and 132Sn is studied by using a phenomenological asymmetric nuclear equation of state and an isospin dependent quantum molecular dynamics (IQMD) model. It is found that the isospin effect vanishes gradually with increasing temperature, Production mechanism of intermediate mass fragments is also analysed for different density distribution in coordinate space at a given temperature.Critical phenomena are investigated preliminarily by using correlation analysis of fragments.

References

[1]

.LI B A,Ko C M,Bauer W.Int.J.Mod.Phys.,1998,E7;1472.LI W F,ZHANG F S,CHEN L W.Acta Phys.Sin.,2001,50(6);1040 (in Chinese)(李文飞,张丰收,陈列文.物理学报,2001,50 (6);1040)3.ZHANGF S,CHENL W,MINGZ Yet al.Phys.Rev.,1999,C60;0646044.Pochatlzalla J et al.Phys.Rev.Lett.,1995,75; 10405.ZHANG F S,GE L X.Nuclear Multifragmentation.Beijing; SciencePress.1998,174 (in Chinese)(张丰收,葛凌宵.原子核多重碎裂.北京:科学出版社,1998.174.)6.ZHANG F S.Z.Phys.,1996,A356;1637.De J N,Samaddar S K,Shlomo S.Nucl.Phys.,1998,A630;1928.Bertsch G F,Das Gupta S.Phys.Rep.,1988,160;1899.Jaqaman H R.Phys.Rev.,1989,C39;16910.CHEN L W,ZHANG F S,J IN GM.Phys.Rev.,1998,C58;228311.Sauer G,Chandra H,Mosel U.Nucl.Phys.,1976,A264;22112.Ploszajczak M,Tucholski A.Phys.Rev.Lett.,1990,65;1539

[1]	FANG De-Qing , MA Yu-Gang , MA Chun-Wang , ZHONG Chen , CAI Xiang-Zhou , CHEN Jin-Gen , GUO Wei , SU Qian-Min , TIAN Wen-Dong , WANG Kun , YAN Ting-Zhi , SHEN Wen-Qing . Systematic Behavior of Isospin Effect in Fragmentation Reactions. Chinese Physics C, 2007, 31(1): 59-64.
[2]	FANG De-Qing , MA Yu-Gang , MA Chun-Wang , ZHONG Chen , CAI Xiang-Zhou , CHEN Jin-Gen , GUO Wei , SU Qian-Min , TIAN Wen-Dong , WANG Kun , YAN Ting-Zhi , SHEN Wen-Qing . Study of Isoscaling in Projectile Fragmentation and the Nuclear Symmetry Energy Coefficient. Chinese Physics C, 2006, 30(S2): 274-276.
[3]	HUANG Xi , ZHANG Feng-Shou , FENG Zhao-Qing , JIN Gen-Ming . Critical Behavior of Multifragmentation in Finite Nuclei and Extraction of Critical Exponents. Chinese Physics C, 2006, 30(2): 123-127.
[4]	HU Rong-Jiang , WU He-Yu , JIN Gen-Ming , ZHU Yong-Tai , LI Song-Lin , XIAO Zhi-Gang , WANG Hong-Wei , DUAN Li-Min , LI Zu-Yu , YIN Xu , WANG Su-Fang , ZHANG Bao-Guo , WEI Zhi-Yo , , , . Isospin Effect of Charged Particle Multiplicity in Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2003, 27(11): 990-994.
[5]	XING Yong-Zhong , LIU Jian-Ye , GUO Wen-Jun , ZUO Wei , DI Yu-Fang , LI Xi-Guo , LI Zeng-Hua . Isospin Effects on Fragmentation Process and Role of Momentum Dependent Interaction in Heavy Ion Collisions at Intermediate Energy. Chinese Physics C, 2003, 27(2): 130-134.
[6]	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.
[7]	ZHANG Feng-Shou , CHEN Lie-Wen , LI Wen-Fei , ZHU Zhi-Yuan . Isospin Dependence of Squeeze-out Flow. Chinese Physics C, 2001, 25(5): 412-416.
[8]	YANG Yan-Fang , LIU Jian-Ye , ZUO Wei , GUO Wen-Jun , ZHAO Qiang . Entrance Channel Dependence of the Isospin Effects of the Nuclear Stopping in Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2001, 25(8): 765-771.
[9]	CHEN LieWen , ZHANG FengShou , JIN GenMing , LIU JianYe , ZHU ZhiYuan . Isospin Effects on Radial Expansion Flow. Chinese Physics C, 2000, 24(2): 153-159.
[10]	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.
[11]	ZHANG FengShou , CHEN LieWen , MING ZhaoYu , ZHU ZhiYuan . Isospin Effects on Multifragmentation in Reactions of ¹¹²)Sn+¹¹²Sn and ¹²⁴Sn+¹²⁴Sn at 40MeV/u. Chinese Physics C, 2000, 24(3): 238-243.
[12]	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.
[13]	CHEN Bo , LIU JianYe , ZHANG FengShou , CHEN LieWen , ZHAO Qiang , ZUO Wei . Isospin Effects on Multifragmentation of Light Mass System. Chinese Physics C, 2000, 24(3): 244-249.
[14]	Zhang Fengshou , Ge Lingxiao . A Static Theory for Nuclear Multifragmentation Ⅱ.lntermittent Pattern and Critical Behaviour. Chinese Physics C, 1997, 21(5): 445-452.
[15]	Liu Qingjun , Zhao Weiqin . Geometric and Fragmentation Effects of Leading Particle Rapidity Distributions for High Energy p-Ag Collisions. Chinese Physics C, 1995, 19(4): 340-347.
[16]	ZHANG Qi-Ren , LI Xun-Gui . Finite Abnormal Nuclei. Chinese Physics C, 1991, 15(11): 1010-1014.
[17]	LIU Hong-Min , SA Ben-Hao , ZHENG Yu-Ming , LU Zhong-Dao , ZHANG Xiao-Ze . Correlation of Moments and Critical Phenomenon in Disassembly of Hot Nuclei. Chinese Physics C, 1991, 15(11): 1053-1056.
[18]	LU Shu-Cheng , PAN Zheng-Ying , WANG Yan-Seng . DIFFUSENESS AND DEFORMATION EFFECT IN NUCLEAR CHARGE RADIUS. Chinese Physics C, 1985, 9(5): 594-602.
[19]	Wang Ying-cai , Li Guang-lie , Zhang Zong-ye . THE π CONDENSATION EFFECTS IN FINITE NUCLEI. Chinese Physics C, 1980, 4(1): 63-72.
[20]	Xu Jiao-lin , Wu Yong-shi , Chen Shi , Guo Han-ying . ISOSPIN CIASSIFICATION OF HADRONS BY FINITE GROUP. Chinese Physics C, 1980, 4(2): 251-255.

Access

Get Citation

FENG Zhao-Qing, ZHANG Feng-Shou, HUANG Xi, JIN Gen-Ming and LI Wen-Fei. Isospin Effect of Multifragmentation and Critical Phenomena in Finite Nuclei[J]. Chinese Physics C, 2005, 29(6): 577-582.

FENG Zhao-Qing, ZHANG Feng-Shou, HUANG Xi, JIN Gen-Ming and LI Wen-Fei. Isospin Effect of Multifragmentation and Critical Phenomena in Finite Nuclei[J]. Chinese Physics C, 2005, 29(6): 577-582. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2004-10-20
Revised: 1900-01-01

Article Metric

Article Views(3092)
PDF Downloads(594)
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, [email protected]

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Isospin Effect of Multifragmentation and Critical Phenomena in Finite Nuclei

Corresponding author: FENG Zhao-Qing,

Center of Theoretical Nuclear Physics,National Laboratory of Heavy Ion Accelerator,Lanzhou 730000,China2 Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China3 Institute of Low Energy Nuclear Physics,Beijing Normal University,Beijing 100875,China4 Department of Physics,Nanjing University,Nanjing 2100935 Graduate school,Chinese Academy of Sciences,Beijing 100049,China

Received Date: 2004-10-20

Accepted Date: 1900-01-01

Available Online: 2005-06-05

Abstract: Isospin effect of multifragmentation for the finite nuclei 112Sn and 132Sn is studied by using a phenomenological asymmetric nuclear equation of state and an isospin dependent quantum molecular dynamics (IQMD) model. It is found that the isospin effect vanishes gradually with increasing temperature, Production mechanism of intermediate mass fragments is also analysed for different density distribution in coordinate space at a given temperature.Critical phenomena are investigated preliminarily by using correlation analysis of fragments.

HTML

Reference (1)

Isospin Effect of Multifragmentation and Critical Phenomena in Finite Nuclei

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, [email protected]

Email This Article