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

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

Chinese Physics C> 1993, Vol. 17> Issue(1) : 1-7

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

Department of Modern Physics,University of Science and Technology of China,Hefei 230026

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Abstract：
The pseudo-rapidity distributions of charged particles produced in pp collisions at 400GeV/c have been measured using LEBC films.The multiplicity distributions in forward hemis-phere at fixed total multiplicities are obtained.The forward-backward multiplicity correlation strength in full phase spsce,central region and off-central region of the pseudo-rapidity distribution are calculated.
The figures of the correlation strength versus pseudo-rapidity 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.

References

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[1]	WANG ShaoShun , WU Chong . Erraticity Analysis of Multiparticle Production in pp Collisions at 400GeV/c. Chinese Physics C, 2000, 24(4): 285-289.
[2]	WU Chong , WANG ShaoShun . Self-affine Multifractal Analysis in 400GeV/c pp Collisions. Chinese Physics C, 2000, 24(9): 791-796.
[3]	Wang Shaoshun , Liu Ran , Wang Zhaomin . Non-thermal Phase Transition in pp Collisions at 400 GeV/c. Chinese Physics C, 1999, 23(9): 841-845.
[4]	Wang Shaoshun , Liu Ran , Wang Zhaomin . Production of Ring-like Events in pp Collisions at 400GeV/c. Chinese Physics C, 1999, 23(1): 17-21.
[5]	Wang Shaoshun , Liu Ran Wang , Zhaonmin . Data of Bunching Parameter and Correlator in 400GeV/c pp Collisions. Chinese Physics C, 1999, 23(12): 1135-1140.
[6]	Wang Shaoshun , Wang Zhaomin , Wu Chong . Self-affine Fractality of Multiparticle Productionin pp Collisions at 400 GeV/c. Chinese Physics C, 1998, 22(4): 289-292.
[7]	Wang Shaoshun , Wang Zhaomin , Liu Ran . Chaotic Behavior of Multiparticle Production in pp Collisions at 400GeV/c. Chinese Physics C, 1998, 22(10): 873-877.
[8]	Wang Shaoshun , Zhang Jie , Ye Yunxiu , Xiao Chenguo . Factorial Moments of Continuous Order and Multifractal Analysis in 400 GeV/c pp Collisions. Chinese Physics C, 1997, 21(S4): 1-10.
[9]	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.
[10]	Wang Shaoshun , Wang Zhaomin , Zhang Jie . Angular Dependence of Two Particle Correlation in 400GeV/c pp Collisions. Chinese Physics C, 1997, 21(11): 990-994.
[11]	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.
[12]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Zhong Yu . Multiparticle Correlations, Factorial Cumulant Moments and Correlation Integrals in pp Collisions at 400 GeV/c. Chinese Physics C, 1995, 19(4): 296-304.
[13]	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.
[14]	Wang Shaoshun , Xiao Chenguo , Zhang Jie , Xia Xiaojuan , Xiong Weijun , Zhong Yu . The Study of Particle Densities in Pseudorapidity Space in pp collisions at 400GeV/c. Chinese Physics C, 1994, 18(5): 392-397.
[15]	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.
[16]	Wang Shaoshun , Zhang Jie , Xiao Chenguo , Ye Yunxiu , Zhong Yu , Li Zuhao . Fractal Behavior of Multiparticle Production in pp Collisions at 400GeV/c. Chinese Physics C, 1994, 18(11): 975-981.
[17]	WANG Shao-Shun , ZHANG Jie , XIAO Chen-Guo , YE Yun-Xiu , LUO Qi , CHENG Zheng-Dong , XIONG Wei-Jun , YANG Chun . Pseudorapidity Gap Length Distributions in pp Collisions at 400GeV/c. Chinese Physics C, 1993, 17(5): 396-402.
[18]	WANG Shao-Shun , ZHANG Jie , XIAO Chen-Guo , YE Yun-Xiu , CHENG Zheng-Dong , ZHANG Xue-Qian , LUO Qi , XU Wan-Li , XIONG Wei-Jun . Two-particle Pseudorapidity Correlations in pp Collisions at 400GeV/c. Chinese Physics C, 1992, 16(6): 487-493.
[19]	WANG Shao-Shun , ZHANG Jie , YE Yun-Xiu , XIAO Chen-Guo , CHENG Zheng-Dong , ZHANG Xue-Qian , LUO Qi . Measurement of Semi-Inclusive Charged Particle Pseudorapidity Destributions in pp Collisions at 400GeV/c. Chinese Physics C, 1991, 15(12): 1057-1062.
[20]	WANG Shao-Shun , ZHANG Jie , XIAO Chen-Guo , YE Yun-Xiu , SHI Guo-Shun , FANG Rong , YANG Jie . MULTIPLICITY DISTRIBUTIONS OF CHARGED PARTICLES PRODUCED IN pp COLLISIONS AT 400GeV/c. Chinese Physics C, 1989, 13(8): 673-679.

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WANG Shao-Shun, ZHANG Jie, YE Yun-Xiu, XIAO Chen-Guo, LUO Qi, CHENG Zheng-Dong, ZHANG Xue-Qian, XU Wan-Li and WIONG Wei-Jun. Forward-Backward Multiplicity Correlations in pp Collisions at 400GeV/c[J]. Chinese Physics C, 1993, 17(1): 1-7.

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

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通讯作者: 陈斌, bchen63@163.com

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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 400GeV/c

Corresponding author: WANG Shao-Shun,

Department of Modern Physics,University of Science and Technology of China,Hefei 230026

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1993-01-05

Abstract: The pseudo-rapidity distributions of charged particles produced in pp collisions at 400GeV/c have been measured using LEBC films.The multiplicity distributions in forward hemis-phere at fixed total multiplicities are obtained.The forward-backward multiplicity correlation strength in full phase spsce,central region and off-central region of the pseudo-rapidity distribution are calculated.
The figures of the correlation strength versus pseudo-rapidity 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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Forward-Backward Multiplicity Correlations in pp Collisions at 400GeV/c

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通讯作者: 陈斌, bchen63@163.com

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