Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision

ZHANG FengShou; CHEN LieWen; MING ZhaoYu; ZHU ZhiYuan

Chinese Physics C> 2000, Vol. 24> Issue(4) : 320-325

Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences,Lanzhou 730000, China3 CCAST World Laboratory, Beijing 100080, China4 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences,Shanghai 201800, China

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Abstract：
Within the framework of an IQMD model, the stopping rate Erat, linear momen-tum transfer LMT, charged-particle multiplicities N., light charged-particle multiplicities N1c, neutron multiplicities N., and Zbound are investigated as a function of the impact param- eter b in reactions of ¹¹²Sn+¹¹²Sn and ¹²⁴Sn +¹²⁴Sn at 40 and 100 MeV/u. The results indi-cate that N_n is isopsin-dependent as a function of b at both 40 and 100 MeV/u, and Z_bound is also isopsin-dependent at 40 MeV/u but not at 100 MeV/u. Meanwhile, we also discuss how to determine impact parameter of an event at lower and higher incident energies.

References

[1]

ZHANG F S, GE L X. Nuclear Multi–fragmentation (in Chinese), Beijing: Science Press, 1998 (张丰收、葛凌霄.原子核多重碎裂.北京:科学出版社,1998)2 Hubele J et al. Z. Phys., 1991, A340(3):263–2703 Gobbi A et al. Nucl. Inst. Meth., 1993,A324(1,2): 156–1764 De Souza R T et al. Nucl.Inst, Meth., 1990,A295(1,2): 156 5 Pouthas J et al. Nucl. Inst. Meth.,1995,A357(2,3):418–4426 Aiello S, Anzalone A, Baldo M et al. Nucl. Phys., 1995, A583: 461c–464c 7 Kunde G J, Gaff S J, Gelbke C K et al. Phys. Rev. Lett., 1996,77(14):2897–29008 ZHANG FengShou,CHEN LieWen,MING Zhao Yu et al. High Energy Phys.and Nucl.Phys. (in Chinese),2000,24(3):238 (张丰收,陈列文,明照宇等.高能物理与核物理,2000,24(3):238)9 CHEN L W, GE L X, ZHANG X D et al. J. Phys., 1997,G23:211–218 10 CHEN L W, ZHANG F S, JIN G M. Phys. Rev., 1998,C58(4):2283–229111 CHEN LieWen, ZHANG FengShou, JIN GenMuing et al. High Energy Phys. and Nucl. Phys. (in Chinese), 2000,24(2):153 (陈列文、张丰收、靳根明等高能物理与核物理,2000,24(2):153) 12 CHEN LieWen, ZHANG XiaoDong, GE LingXiao. High Energy Phys. and Nucl. Phys. (in Chinese),1996,20(12):1091–1096 (陈列文,张晓东,葛凌霄.高能物理与核物理,1996,20(12):1091–1096) 13 ZHU Z Y, SHEN W Q, CAI Y H et al. Phys. Lett.,1994,B328:1–414 Lalazissis G A, Koning J, Ring P. Phys. Rev., 1997,C55(1):540–543

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[2]	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.
[3]	FENG Sheng-Qin , LIU Lian-Shou . A Study of Mixing Event Method in Relativistic Heavy Ion Collision Experiments. Chinese Physics C, 2003, 27(4): 349-353.
[4]	ZHENG Yu-Ming , CHU Zi-Li , Fuchs Christian , Faessler Amand , XIAO Wu , HUA Da-Ping . Kaon Flow in Heavy-Ion Collisions. Chinese Physics C, 2002, 26(S1): 77-81.
[5]	HUO Lei , ZHANG Wei-Ning , CHEN Xiang-Jun , ZHANG Jing-Bo , TANG Gui-Xin . Anisotropic Transverse Flow in High Energy Heavy Ion Collisions. Chinese Physics C, 2001, 25(9): 865-871.
[6]	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.
[7]	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.
[8]	Zeng Xianghua , Ge Lingxiao . Thermalization,Expansion and Radial Flow in HIC. Chinese Physics C, 1997, 21(2): 157-161.
[9]	Liu Hang , Liu Jianye , Li Junqing . Study of the Structure Effect in Fragment Formation Process in HIC. Chinese Physics C, 1996, 20(8): 723-728.
[10]	Zeng Xianghua , Ge Lingxiao . Studies of Radial Expansion Energy in HIC at Medium Energies. Chinese Physics C, 1996, 20(4): 345-349.
[11]	Liu Jianye , Zhang Shaoguang . Dynamical Study on Processes of Intermediate-Energy Heavy Ion Collisions. Chinese Physics C, 1995, 19(1): 53-58.
[12]	Zhu Quanling , Ge Lingxiao , Zhang Xiaodong . Isospin Effects on Dynamics of Heavy Ion Collisions. Chinese Physics C, 1994, 18(9): 853-857.
[13]	Zhang Shaoguang , Liu Jianye . Multifragmentation in Heavy Ion Collisions. Chinese Physics C, 1994, 18(S1): 64-70.
[14]	ZHANG Feng-Shou , GE Ling-Xiao . Excitation Energy in Heavy Ion Collisions. Chinese Physics C, 1992, 16(7): 666-669.
[15]	GE Ling-Xiao , ZHANG Jian-Ming , ZHANG Feng-Shou , ZHUO Yi-Zhong . The Properties of Nuclear Collective Flow in the Intermediate and High Energy Heavy-ion Collisions. Chinese Physics C, 1991, 15(11): 1041-1048.
[16]	ZHU Yun-Lun , ZHAO Wei-Qin , GAO Chong-Shou . Effect of Secondary Collisions on the K⁺/π⁺ Ratio in RHIC. Chinese Physics C, 1991, 15(7): 606-614.
[17]	LIU Jian-Ye , LI Jun-Qing , QIAO Wei-Min , CHEN Pei-Jun , SHEN Wen-Qing , TAN Nan-Hong . THE SHELL EFFECTS IN HEAVY ION COLLISIONS FOR LOW BOBARDMENT ENERGIES. Chinese Physics C, 1988, 12(6): 840-847.
[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 RU-LIN , MA WEI-XING . INVESTIGATION ON MULTIPLE SCATTERING MECHANISM IN HEAVY-IONS COLLISIONS. Chinese Physics C, 1981, 5(2): 192-196.

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ZHANG FengShou, CHEN LieWen, MING ZhaoYu and ZHU ZhiYuan. Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision[J]. Chinese Physics C, 2000, 24(4): 320-325.

ZHANG FengShou, CHEN LieWen, MING ZhaoYu and ZHU ZhiYuan. Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision[J]. Chinese Physics C, 2000, 24(4): 320-325. shu

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Received: 1999-02-01
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision

Corresponding author: ZHANG FengShou,

Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000, China2 Institute of Modern Physics, The Chinese Academy of Sciences,Lanzhou 730000, China3 CCAST World Laboratory, Beijing 100080, China4 Shanghai Institute of Nuclear Research, The Chinese Academy of Sciences,Shanghai 201800, China

Received Date: 1999-02-01

Accepted Date: 1900-01-01

Available Online: 2000-04-05

Abstract: Within the framework of an IQMD model, the stopping rate Erat, linear momen-tum transfer LMT, charged-particle multiplicities N., light charged-particle multiplicities N1c, neutron multiplicities N., and Zbound are investigated as a function of the impact param- eter b in reactions of ¹¹²Sn+¹¹²Sn and ¹²⁴Sn +¹²⁴Sn at 40 and 100 MeV/u. The results indi-cate that N_n is isopsin-dependent as a function of b at both 40 and 100 MeV/u, and Z_bound is also isopsin-dependent at 40 MeV/u but not at 100 MeV/u. Meanwhile, we also discuss how to determine impact parameter of an event at lower and higher incident energies.

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Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision

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