Forward-Backward Multiplicity Correlations in pp Collisions at 400 GeV/<i>c</i>

Wang Shaoshun; Zhang Jie; Ye Yunxiu; Xiao Chenguo; Luo Qi; Cheng Zhengdong; Zhang Xueqian; Xu Wanli; Xiong Weijun

Chinese Physics C> 1992, Vol. 16> Issue(S4) : 367-374

Forward-Backward Multiplicity Correlations in pp Collisions at 400 GeV/c

Department of Modem Physics, University of Science and Technology of China, Hefei, Anhui, China

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Abstract：
The pseudorapidity distributions of charged particles produced in pp collisions at 400 GeV/c have been measured using LEBC films. The multiplicity distributions in forward hemisphere at fixed total multiplicities are obtained. The forward-backward multiplicity correlation strength in full-phase space, central region, and off-central region of the pseudorapidity distribution are calculated. The correlation strength versus pseudorapidity windows are obtained. The experimental data of the forward-backward correlation have been analyzed with cluster model. The results show that the average cluster size is dependent on whether the leading-particle effect is taken into account.

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[8]	Wang Shaoshun , Zhang Jie , Ye Yunxiu , Xiao Chenguo . Factorial Moments Continuous Order and Multifractal Analysisin 400GeV/c pp Collisions. Chinese Physics C, 1997, 21(9): 769-776.
[9]	Wang Shaoshun , Li Zuhao , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Shen Tianguang . The Azimuthal Structure of Particles Produced in pp Collisions at 400 GeV/c. Chinese Physics C, 1996, 20(4): 297-303.
[10]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Zhong Yu , Shen Tianguang . Fractal Analysis of Pseudorapidity Distribution Fluctuation in 400GeV/c pp Collisions. Chinese Physics C, 1995, 19(11): 968-973.
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[14]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Xiong Weijun , Zhong Yu , Li Zuhao . Measurement of Intermittency Exponents in pp Collisions at 400GeV/c. Chinese Physics C, 1994, 18(11): 970-974.
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[16]	WANG Shao-Shun , ZHANG Jie , YE Yun-Xiu , XIAO Chen-Guo , LUO Qi , CHENG Zheng-Dong , ZHANG Xue-Qian , XU Wan-Li , WIONG Wei-Jun . Forward-Backward Multiplicity Correlations in pp Collisions at 400GeV/c. Chinese Physics C, 1993, 17(1): 1-7.
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[18]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Cheng Zhengdong , Zhang Xueqian , Luo Qi , Xu Wanli , Xiong Weijun . Two-Particle Pseudorapidity Correlations in pp Collisions at 400 GeV/c. Chinese Physics C, 1992, 16(S2): 127-134.
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[20]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Shi Guoshun , Fang Rong , Yang Jie . Multiplicity Distribution of Charged Particles Produced in pp Collisions at 400 GeY/c. Chinese Physics C, 1989, 13(S3): 231-238.

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Wang Shaoshun, Zhang Jie, Ye Yunxiu, Xiao Chenguo, Luo Qi, Cheng Zhengdong, Zhang Xueqian, Xu Wanli and Xiong Weijun. Forward-Backward Multiplicity Correlations in pp Collisions at 400 GeV/c[J]. Chinese Physics C, 1992, 16(S4): 367-374.

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Received: 1991-11-14

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Supported by the National Natural Science Foundation of China.

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沈阳化工大学材料科学与工程学院沈阳 110142

Forward-Backward Multiplicity Correlations in pp Collisions at 400 GeV/c

Department of Modem Physics, University of Science and Technology of China, Hefei, Anhui, China

Received Date: 1991-11-14

Fund Project: Supported by the National Natural Science Foundation of China.

Abstract: The pseudorapidity distributions of charged particles produced in pp collisions at 400 GeV/c have been measured using LEBC films. The multiplicity distributions in forward hemisphere at fixed total multiplicities are obtained. The forward-backward multiplicity correlation strength in full-phase space, central region, and off-central region of the pseudorapidity distribution are calculated. The correlation strength versus pseudorapidity windows are obtained. The experimental data of the forward-backward correlation have been analyzed with cluster model. The results show that the average cluster size is dependent on whether the leading-particle effect is taken into account.