Polar Distribution of Final State Particles in High-Energy Heavy Ion Collisions

Huo Lei; Liu Yiming; Zhang Weining; Jiang Yuzhen; D. Keane; S. Y. Fung

Chinese Physics C> 1996, Vol. 20> Issue(S2) : 141-147

Polar Distribution of Final State Particles in High-Energy Heavy Ion Collisions

1 Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang, China;
2 Department of Physics, Kent State University, Kent, Ohio, U. S. A.;
3 Department of Physics, University of California, Riverside, California, U. S. A.

Abstract
HTML
Reference
Related

PDF

Abstract：
The anisotropy of azimuthal distributions for final state particles in center-of-mass systems where the z axis is rotated to various polar angle in the reaction plane is studied, and a method to determine the flow angle is proposed. Studying the polar angle distributions for collisions of 1.2AGeV Ar+KCl,1.2AGeV Ne+NaF,and 2.1AGeV Ne+NaF at the Bevalac streamer chamber in the coordinate systems with the z axis rotated to the flow angle, we can estimate the fraction of the anisotropic emission particles to all the final state particles and the degree of concentration around the flow direction quantitatively.
- collective sideward flow ,
- reaction plane ,
- flow angle

[1]	. Probing the cluster structure of ⁶Li with the ⁶Li + ¹²C nuclear reaction at 68 MeV. Chinese Physics C, 2026, 50(1): 014102. doi: 10.1088/1674-1137/ae072b
[2]	Yu-Wen Chen , Yun-Ju Li , Bing Guo , Sheng-Quan Yan , Chao Dong , Dan-Yang Pang , Guo Yang , Yang Zhang , Yu-Qiang Zhang , Jun-Wen Tian , Jia-Ying-Hao Li , Fu-Qiang Cao , Wei Nan , Jiang-Lin Hou , Ming-Hao Zhu , Zhi-Cheng Zhang , Chang-Xin Guo , Chen Chen , Yu-Chen Jiang , Yang-Ping Shen , Zhi-Hong Li , You-Bao Wang , Sheng Zeng , Wei-Ping Liu . New determination of astrophysical ²⁶Mg(p, γ)²⁷Al reaction rate through the ²⁶Mg(⁷Li, ⁶He)²⁷Al transfer reaction. Chinese Physics C, 2026, 50(3): 1-7. doi: 10.1088/1674-1137/ae1f06
[3]	Shaowei Lan , Qiuhua Liu , Yong Li , Shusu Shi . Energy Dependence of Elliptic Flow Ratio v₂^PP/v₂^RP in Heavy-ion Collisions Using the AMPT Model. Chinese Physics C, 2026, 50(3): 1-6.
[4]	Hanmei Cao , Fanglei Zou , Xiaojun Sun , Jingshang Zhang . Effects of energy levels on the double-differential cross sections of outgoing charged particles for the n+¹⁹F reaction below 20 MeV. Chinese Physics C, 2025, 49(12): 124107. doi: 10.1088/1674-1137/adf49f
[5]	Yu. M. Gledenov , I. Chuprakov , Guohui Zhang , G. Khuukhenkhuu , M. Odsuren , B. Usukhbayar , L. Krupa , E. Sansarbayar , Jie Liu , Haofan Bai , Cong Xia , Zepeng Wu , Wenkai Ren , D. Berikov , G. Ahmadov , A. K. Bekbayev , B. Mukhametuly , E. S. Korshikov , N. T. Temerbulatova , E. B. Myrzabekova , O. Daulbayev , Y. Arynbek . Cross section measurement of the ⁶Li(n,t)⁴He reaction in the MeV neutron energy range. Chinese Physics C, 2025, 49(12): 124004. doi: 10.1088/1674-1137/ae0306
[6]	Muhammad Farhan Taseer , Subhash Singha . Impact of particle production mechanisms on pseudorapidity distribution and directed flow in Au+Au and Cu+Cu collisions at ${ \sqrt{{\boldsymbol s}_{\boldsymbol{ NN}}}}$ = 19.6 GeV using AMPT model. Chinese Physics C, 2025, 49(10): 104101. doi: 10.1088/1674-1137/ade660
[7]	Siyu Tang , Zuman Zhang , Chao Zhang , Liang Zheng , Renzhuo Wan . Investigating the transverse-momentum- and pseudorapidity-dependent flow vector decorrelation in p–Pb collisions with a multi-phase transport model. Chinese Physics C, 2025, 49(12): 124104. doi: 10.1088/1674-1137/adef1b
[8]	J. M. Wang , X. G. Deng , W. J. Xie , B. A. Li , Y. G. Ma . Bayesian inference of nuclear incompressibility from collective flow in mid-central Au+Au collisions at 400–1500 MeV/nucleon. Chinese Physics C, 2025, 49(12): 124105. doi: 10.1088/1674-1137/adf4a1
[9]	ZHANG Da-Lin , QIU Sui-Zheng , LIU Chang-Liang , SU Guang-Hui . Steady state investigation on neutronics of a molten salt reactor considering the flow effect of fuel salt. Chinese Physics C, 2008, 32(8): 624-628. doi: 10.1088/1674-1137/32/8/007
[10]	Li Yangguo . Antiproton -Nucleus Charge Exchange Reaction and Inelastic Scattering. Chinese Physics C, 1996, 20(11): 1021-1027.
[11]	ZHU Xiang , SHEN Wen-Qing , HU Xiao-Qing , ZHU Yong-Tai , WANG Bing . A SIMPLE MODEL ANALYSIS OF THE INCOMPLETE DIC REACTION. Chinese Physics C, 1990, 14(9): 835-841.

Access

Get Citation

Huo Lei, Liu Yiming, Zhang Weining, Jiang Yuzhen, D. Keane and S. Y. Fung. Polar Distribution of Final State Particles in High-Energy Heavy Ion Collisions[J]. Chinese Physics C, 1996, 20(S2): 141-147.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1995-05-30

Fund

Supported by the National Natural Science Foundation of China, the US Department of Energy, and the US National Science Foundation.

Article Metric

Article Views(1469)
PDF Downloads(5)
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

Polar Distribution of Final State Particles in High-Energy Heavy Ion Collisions

1 Department of Physics, Harbin Institute of Technology, Harbin, Heilongjiang, China;
2 Department of Physics, Kent State University, Kent, Ohio, U. S. A.;
3 Department of Physics, University of California, Riverside, California, U. S. A.

Received Date: 1995-05-30

Fund Project: Supported by the National Natural Science Foundation of China, the US Department of Energy, and the US National Science Foundation.

Abstract: The anisotropy of azimuthal distributions for final state particles in center-of-mass systems where the z axis is rotated to various polar angle in the reaction plane is studied, and a method to determine the flow angle is proposed. Studying the polar angle distributions for collisions of 1.2AGeV Ar+KCl,1.2AGeV Ne+NaF,and 2.1AGeV Ne+NaF at the Bevalac streamer chamber in the coordinate systems with the z axis rotated to the flow angle, we can estimate the fraction of the anisotropic emission particles to all the final state particles and the degree of concentration around the flow direction quantitatively.