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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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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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.