Linear Background and Nonlinear Effect in Relativistic Heavy Ion Collisions

Zhuang Pengfei; Liu Lianshou

Chinese Physics C> 1994, Vol. 18> Issue(2) : 143-147

Linear Background and Nonlinear Effect in Relativistic Heavy Ion Collisions

Zhuang Pengfei ^, ,
Liu Lianshou

Institute of Particle Physics, Hua-Zhong Normal University, Wuhan 430070

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Abstract：
The target mass dependence, α，on the yield of charged particles as a function of pseudorapidity n has been investigated for p, ¹⁶O and ³²S induced central collisions at 200A GeV. It is pointed out that α(η)≤0.4 if we only consider the simple linear superposition of nucleon-nucleon collisions. The experimental data α→1 in the target fragmentation region show the importance of nonlinear collective effect even at present incident energy. Our results from a hydrodynamical model can describe the target mlass dependence well for different projectiles in the whole rapidity ragion.

References

[1]

T.D.Lee,CU-TP-477（1991）.[2]Porexample,Z.Physik,C38（1988）No.1/2.[3]Forexample,B.Andersonetal,Phys.Rep,97（1983）31;A.Capella,U.Sukhatme and J.TranThanh Van,Pkys.Lett,B81（1979）68;Liu Lianshou,Meng Tachung,Pan Jicai and Peng Hongan,Phys.Rev,D33（1988）3405.[4]zhuang Pengfei and Liu Lianshou.,Z.Physik,c46（1990）535.[5]J.D.Bjorken,Phys.Rev,D27（1983）140.[6]WA80 Collaboration,R.Albrecht et al,GSI-92-27（1992）.[7]Zhuang Pengfei and Liu Lianshou,Phys.Rev,D42（1990）848.[8]L. Otterlund.S.Garpman and L. Lund,Z.Pkysik,C20（1983）281.[9]B.Anderson:G.Gustafson and B.Nilsson-Almqvist,Nucl.Phys,B281（1987）289.[10]WA80 Collaboration.R,Albrecht et al.,Phys.Lett,B202（1988）596.[11]S.Fredriksson,G.Enlam and G.Berlad,Phys.Rep.,144（1987）221.[12]K.Kajantie,R.Ratio and P.V.Ruuskanen,Nucl.Phys,B222（1983）152.[13]Zhuang Pengfei.and Liu Lianshou,Phys.Lett,B265（199）,41.

[1]	MAO Hong , LI Yun-De . The Effects of the Pion String at Heavy ion Collisions. Chinese Physics C, 2005, 29(1): 36-40.
[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]	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.
[5]	LU ZhongDao , SA BenHao , Masanori Matsuda , Junichi Nagata , Atsushi Nakamura , Osamu Miyamura . Λ Production and Λ/p Ratio in Relativistic Heavy Ion Collisions. Chinese Physics C, 2000, 24(8): 743-747.
[6]	XU JianMing . Nonlinear Effect in the Circular Mass Spectrometer. Chinese Physics C, 2000, 24(7): 667-675.
[7]	Chen Yinbao , Huang Zhibin . Nonlinear Space Charge Effects and Emittance Growth in Linac. Chinese Physics C, 1999, 23(12): 1231-1242.
[8]	Chen Xiaofan , Chen Zhilai . Effect of the Choice of the Background on Two-Pion Inter-Ferometry. Chinese Physics C, 1999, 23(11): 1097-1101.
[9]	Li Qingfeng , Li Zhuxia . Kaon Production and Flow in Relativistic Heavy-Ion Collisions. Chinese Physics C, 1998, 22(12): 1119-1127.
[10]	Liu Bo , Zhao Weiqin . Analysis of J/ψ Absorption Cross Section in Relativistic Heavy Ion Collisions. Chinese Physics C, 1994, 18(7): 652-657.
[11]	Zhu Quanling , Ge Lingxiao , Zhang Xiaodong . Isospin Effects on Dynamics of Heavy Ion Collisions. Chinese Physics C, 1994, 18(9): 853-857.
[12]	LIU Bo , ZHAO Wei-Qin . Negative Particle Rapidity Distribution in Relativistic Heavy Ion Collisions. Chinese Physics C, 1991, 15(3): 220-223.
[13]	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.
[14]	GAO Xiao-Chun , XU Jing-Bo , YAN Ji-Jin , LI Wen-Zhu . Removability of the Topological Term in the O(3) Nonlinear σ-model. Chinese Physics C, 1991, 15(7): 591-597.
[15]	LIU Bo , ZHAO Wei-Qin . Rapidity Distributions of E_T and n in RHIC and the Effect of Secondary Collisions. Chinese Physics C, 1991, 15(6): 543-548.
[16]	LIU Yi-Ming , ZHANG Wei-Ning , WANG Shan , JIANG Yu-Zhen . TWO-PION INTERFEROMETRY FOR MULTI-PION EVENTS IN RELATIVISTIC HEAVY ION COLLISIONS. Chinese Physics C, 1990, 14(8): 724-730.
[17]	ZHUANG Pen-Fei , LIU Lian-Shou . TARGET MASS DEPENDENCE AND NON-LINEAR EFFECTS IN HIGH ENERGY HEAVY ION COLLISIONS. Chinese Physics C, 1990, 14(3): 240-246.
[18]	MIAO Bi-Xia , ZHAO Wei-Qin . DISTRIBUTIONS OF TRANSVERSE ENERGY AND ZERO-DEGREE ENERGY IN RELATIVISTIC HEAVY ION COLLISIONS. Chinese Physics C, 1989, 13(5): 470-475.
[19]	CAI Xu , ZHOU Zhuo-Wei . TWO TEMPERATURES EMISSION OF RELATIVISTIC α-PARTICLES IN HIGH-ENERGY HEAVY-ION COLLISIONS. Chinese Physics C, 1987, 11(1): 51-56.
[20]	GE Ling-Xiao , LIU Jian-Ye , WANG Shun-Jin . TWO-BODY EFFECT IN HEAVY ION COLLISION. Chinese Physics C, 1987, 11(5): 695-698.

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Zhuang Pengfei and Liu Lianshou. Linear Background and Nonlinear Effect in Relativistic Heavy Ion Collisions[J]. Chinese Physics C, 1994, 18(2): 143-147.

Zhuang Pengfei and Liu Lianshou. Linear Background and Nonlinear Effect in Relativistic Heavy Ion Collisions[J]. Chinese Physics C, 1994, 18(2): 143-147. shu

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Received: 1900-01-01
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

Linear Background and Nonlinear Effect in Relativistic Heavy Ion Collisions

Zhuang Pengfei ^,
Liu Lianshou

Corresponding author: Zhuang Pengfei,

Institute of Particle Physics, Hua-Zhong Normal University, Wuhan 430070

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1994-02-05

Abstract: The target mass dependence, α，on the yield of charged particles as a function of pseudorapidity n has been investigated for p, ¹⁶O and ³²S induced central collisions at 200A GeV. It is pointed out that α(η)≤0.4 if we only consider the simple linear superposition of nucleon-nucleon collisions. The experimental data α→1 in the target fragmentation region show the importance of nonlinear collective effect even at present incident energy. Our results from a hydrodynamical model can describe the target mlass dependence well for different projectiles in the whole rapidity ragion.