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

Abstract
HTML
Reference
Related

PDF

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]	XING Yong-Zhong , LIU Jian-Ye , GUO Wen-Jun . Isospin Effects in the Isospin Fractionation Process in Intermediate Energy HeavyIon Collisions. Chinese Physics C, 2004, 28(4): 403-407.
[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]	GUO Wen-Jun , LIU Jian-Ye , ZUO Wei , XING Yong-Zhong , LI Xi-Guo , LI Zeng-Hua . Isospin Effect of Neutron (Proton) Emission Number in Intermediate Energy Heavy Ion Collisions. Chinese Physics C, 2002, 26(12): 1264-1270.
[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]	Chen Liewen , Zhang Fengshou , Jin Genming . Isospin Effects on Balance Energy in HIC at Intermediate Energies. Chinese Physics C, 1999, 23(5): 469-474.
[7]	Chen Liewen , Zhang Fengshou , Zeng Xianghua , Jin Genming . Isospin Effects on Collective Flow in HIC at Intermediate Energies. Chinese Physics C, 1998, 22(11): 1035-1041.
[8]	Wang Zhenxia , Wang Minmin , Zhu Fuying , Ji Guifang , Luo Wenyun , Li Xinnian , Wang Chuanshan . The Nonlinear Enhancement Effect of Sputered Ag-atoms With FeCl⁺ Bombardment. Chinese Physics C, 1997, 21(4): 304-310.
[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]	Chao Weiqin , Liu Bo . Transverse Energy Dependence of Yield of Charmonium Production in Relativistic Heavy Ion Collisions. Chinese Physics C, 1995, 19(1): 49-52.
[11]	Liu Bo , Zhao Weiqin . Analysis of J/ψ Absorption Cross Section in Relativistic Heavy Ion Collisions. Chinese Physics C, 1994, 18(7): 652-657.
[12]	Zhu Quanling , Ge Lingxiao , Zhang Xiaodong . Isospin Effects on Dynamics of Heavy Ion Collisions. Chinese Physics C, 1994, 18(9): 853-857.
[13]	YU Qing-Chang . Transport of Charged Particle Beam in Nonlinear Periodic Field. Chinese Physics C, 1993, 17(4): 305-309.
[14]	LIU Bo , ZHAO Wei-Qin . Negative Particle Rapidity Distribution in Relativistic Heavy Ion Collisions. Chinese Physics C, 1991, 15(3): 220-223.
[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]	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.
[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]	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.
[19]	Yu Qing-chang . THEORY OF NONLINEAR SPACE-CHARGE EFFECTS OF LOW ENERGY INTENSE CHARGED PARTICLE BEAMS. Chinese Physics C, 1980, 4(5): 579-587.
[20]	LI XIN-ZHOU , GU MING-GAO , YIN PENG-CHENG . NONLINEAR SUPERFIELDS AND QUARK CONFINEMENT. Chinese Physics C, 1979, 3(6): 716-722.

Access

Get Citation

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

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(2751)
PDF Downloads(558)
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

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.