Multiparticle Correlations, Factorial Cumulant Moments and Correlation Integrals in pp Collisions at 400 GeV/c

Wang Shaoshun; Zhang Jie; Xiao Chenguo; Ye Yunxiu; Zhong Yu

Chinese Physics C> 1995, Vol. 19> Issue(4) : 296-304

Multiparticle Correlations, Factorial Cumulant Moments and Correlation Integrals in pp Collisions at 400 GeV/c

Department of Modern Physics, University of Science and Technology of China, Hefei 230027

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Abstract：
The pseudorapidity distribution of charged particles produced in pp collisions at 400GeV/c was measured by using LEBC films offered by CERN NA27 collaboration. The scaled factorial cumulant moments have been caloulated. Comparing with the results obtained from Monte Carlo events with the same single particle spectrum and no correlations, it is shown that for broad mixed multiplicity distributions, a significant part of K₂ is coming from the single particle fluctuation due to the fluctuating multiplicity. The factorial cumulant moments obtained by using the star correlation integrals reduce significantly the statistical errors of the higher order cumulant moments, but the essential conclusions remain unchanged.

References

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[1]	WU Chong , WANG ShaoShun . Self-affine Multifractal Analysis in 400GeV/c pp Collisions. Chinese Physics C, 2000, 24(9): 791-796.
[2]	WANG ShaoShun , WU Chong . Erraticity Analysis of Multiparticle Production in pp Collisions at 400GeV/c. Chinese Physics C, 2000, 24(4): 285-289.
[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]	Zhang Weigang . Particle-Group Correlations and Collectivity for 2.1A Gev Ne+NaF Collision. Chinese Physics C, 1997, 21(10): 911-917.
[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 , Shen Tianguang . Fractal Analysis of Pseudorapidity Distribution Fluctuation in 400GeV/c pp Collisions. Chinese Physics C, 1995, 19(11): 968-973.
[13]	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.
[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.
[15]	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.
[16]	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.
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[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 Shaoshun, Zhang Jie, Xiao Chenguo, Ye Yunxiu and Zhong Yu. Multiparticle Correlations, Factorial Cumulant Moments and Correlation Integrals in pp Collisions at 400 GeV/c[J]. Chinese Physics C, 1995, 19(4): 296-304.

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Received: 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

Multiparticle Correlations, Factorial Cumulant Moments and Correlation Integrals in pp Collisions at 400 GeV/c

Corresponding author: Wang Shaoshun,

Department of Modern Physics, University of Science and Technology of China, Hefei 230027

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1995-04-05

Abstract: The pseudorapidity distribution of charged particles produced in pp collisions at 400GeV/c was measured by using LEBC films offered by CERN NA27 collaboration. The scaled factorial cumulant moments have been caloulated. Comparing with the results obtained from Monte Carlo events with the same single particle spectrum and no correlations, it is shown that for broad mixed multiplicity distributions, a significant part of K₂ is coming from the single particle fluctuation due to the fluctuating multiplicity. The factorial cumulant moments obtained by using the star correlation integrals reduce significantly the statistical errors of the higher order cumulant moments, but the essential conclusions remain unchanged.

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Multiparticle Correlations, Factorial Cumulant Moments and Correlation Integrals in pp Collisions at 400 GeV/c

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通讯作者: 陈斌, bchen63@163.com

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