Discussion on the Local Equilibrium in Intermediate HIC

ZENG XiangHua; CHEN LieWen; ZHANG FengShou; LUO YiXiao

Chinese Physics C> 2000, Vol. 24> Issue(3) : 225-230

Discussion on the Local Equilibrium in Intermediate HIC

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
Baed on the BUU Model, the equilibrium process has been discussed in intermediate energy heavy ion collision, and some related physical quantities, collective flow, temperature and chemical potential have been discussed. Through our studies, we have found that the local equilibrium reaches at a certain time step. The local equilibrium begins from the central region. And for the peripheral collision, the local equilibrium has also been obtained. The temperature and chemical potential for the equilibrium is 5一7MeV and 30MeV, respectively.

References

[1]

Tsang B M et al. Phys, Rev., 1996, C53:R10572 Schwars C, Gong W G, Carin N et al. Phys. Rev.,1993,C48:676 3 Albergo S et al. Nuovo Cimento, 1985,A89: 14 Tsang M B, Lynch W G, XI H et al. MSUCL–1035 5 Hauger J A. Phys. Rev. Lett., 1996,77:235 6 LI ZhuXia, ZHUO YiZhong, WU XiZhen et al. J. Phys. G Nucl. Phys.,1994,20: 1829 7 ZENG XiangHua,GE LingXiao. High Energy Phys. and Nucl. Phys. (in Chinese), 1997, 21: 157(曾祥华,葛凌霄高能物理与核物理,1997,21:157)8 Bertsch G F, Das Gupta S. Phys. Rep., 1988,160:189 9 Kadanoff L P, Baym G. Quantum Statistal Mechaics, USA:the Benjamin/Cummings Publishing Company,Inc. 1962 10 Benson W, Morissey D, Friedman W. Ann. Rev. Nucl. Science, 1994,2711 Suraud E et al. Prog. Part. Nucl. Phys., 1989,23:357–46712 Serfling V et al. Phys. Rev. Lett., 1998,80: 3928;W. Trautmann for Aladin Collaboration. Thermodynamic Varaboes from Spectator Deay. In:14th Winter Workshop on Nucl.Dynamics. Snowbird, Utah, 1998 13 MA Y G, Siwek A. Phys. Lett.,1997,B390:47 14 XI H et al. Z. Physik, 1997,A359:397 15 Heiselbers H,Pethick C J, Ravenhall D G. Ann. Phys. (N. Y. ),1993,223:37 16 ZHU F,Lynch W G, Bownann D R et al. Phys. Lett., 1992,B282:299

[1]	S.Manly⁸ , B.Alver⁴ , B.B.Back¹ , M.D.Baker² , M.Ballintijn⁴ , D.S.Barton² , R.R.Betts⁶ , R.Bindel⁷ , W.Busza⁴ , Z.Chai² , V.Chetluru⁶ , E.Garcia⁶ , T.Gburek³ . Eccentricities of Flow-Elliptic Flow Fluctuations and Evidence for Transverse Localization in the Initial State of the Matter in Relativistic Heavy Ion Collisions. Chinese Physics C, 2007, 31(12): 1133-1136.
[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]	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]	ZHAO Qiang , GUO Wen-Jun , LIU Jian-Ye , ZUO Wei , WANG Shun-Jin . Isospin Dependence of Preequilibrium Nucleon Emission in Intermediate Energy Heavy Ion Collision. Chinese Physics C, 2001, 25(3): 244-250.
[5]	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.
[6]	ZHANG FengShou , CHEN LieWen , MING ZhaoYu , ZHU ZhiYuan . Determination of Impact Parameter at Intermediate Energy Heavy Ion Collision. Chinese Physics C, 2000, 24(4): 320-325.
[7]	Chen Liewen , Zhang Fengshou , Jin Genming . Isospin Effects on Balance Energy in HIC at Intermediate Energies. Chinese Physics C, 1999, 23(5): 469-474.
[8]	Chen Liewen , Zhang Fengshou , Zeng Xianghua . Finite Range Effects of Local Interactionin Intermediate Energy HIC. Chinese Physics C, 1998, 22(6): 538-544.
[9]	Zeng Xianghua , Ge Lingxiao . Thermalization,Expansion and Radial Flow in HIC. Chinese Physics C, 1997, 21(2): 157-161.
[10]	Chen Liewen , Zhang Xiaodong , Ge Lingxiao . Isospin Effects on Pre-equilibrium NucleonEmission in Heavy Ion Collisions. Chinese Physics C, 1996, 20(12): 1091-1096.
[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]	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.
[16]	GE Ling-Xiao , LIU Jian-Ye , WANG Shun-Jin . RELAXATION OF SINGLE PARTICLE DEGREES OF FREEDOM IN HEAVY ION COLLISION. Chinese Physics C, 1989, 13(3): 245-251.
[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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ZENG XiangHua, CHEN LieWen, ZHANG FengShou and LUO YiXiao. Discussion on the Local Equilibrium in Intermediate HIC[J]. Chinese Physics C, 2000, 24(3): 225-230.

ZENG XiangHua, CHEN LieWen, ZHANG FengShou and LUO YiXiao. Discussion on the Local Equilibrium in Intermediate HIC[J]. Chinese Physics C, 2000, 24(3): 225-230. shu

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Received: 1998-12-21
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Discussion on the Local Equilibrium in Intermediate HIC

Corresponding author: ZENG XiangHua,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 1998-12-21
Accepted Date: 1900-01-01
Available Online: 2000-03-05

Abstract: Baed on the BUU Model, the equilibrium process has been discussed in intermediate energy heavy ion collision, and some related physical quantities, collective flow, temperature and chemical potential have been discussed. Through our studies, we have found that the local equilibrium reaches at a certain time step. The local equilibrium begins from the central region. And for the peripheral collision, the local equilibrium has also been obtained. The temperature and chemical potential for the equilibrium is 5一7MeV and 30MeV, respectively.