The Ratio of Factorial Cumulant to Factorial Moment Versus the Size of Phase Space

Wang Shaoshun; Zhang Jie; Ye Yunxiu; Xiao Chenguo

Chinese Physics C> 1996, Vol. 20> Issue(9) : 783-788

The Ratio of Factorial Cumulant to Factorial Moment Versus the Size of Phase Space

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

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Abstract：
The ratio of factorial cumulant to factorial moment of multiplicity distributions in different pseudorapidity windows has been calculated by using the experimental data of multiplicity production for pp collisions at 400GeV/c.The results show that the ratio H_q exhibits an initial abrupt descent and then an oscillation around zero when the order q is increased.It is coincident with the PQCD prediction.The difference is that the position of the first minimum moves to higher rank when the pseudorapidity window becomes smaller.

References

[1]

Yu.L.Dokshitzer et al.,Basics of Perturbative QCD,edited by J、Tran Thanh Van（Editions Frontieres,Gif-sur-Yvette,1991）[2] I.M.Dremin,PhysLett.,B313（1993）209.[3] I.M.Dremin,V.A.Nechitailo,JETPLett,58（1993）945;I.M.Dremin,R.C.Hwa,Phys.Rev.,D49（1994）5805.[4] I.M.Dremin et al.,Phys.Lett.,B336（1994）119.[5] I.M.Dremin,Phys.Lett.,B341（1995）95.[6] R.Ugoccioni,A.Giovannini,S.Lupia,Phys.Lett.,B342（1995）387.[7] WangShaoshun et al.,Z.Phys.,C68（1995）415.

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Wang Shaoshun, Zhang Jie, Ye Yunxiu and Xiao Chenguo. The Ratio of Factorial Cumulant to Factorial Moment Versus the Size of Phase Space[J]. Chinese Physics C, 1996, 20(9): 783-788.

Wang Shaoshun, Zhang Jie, Ye Yunxiu and Xiao Chenguo. The Ratio of Factorial Cumulant to Factorial Moment Versus the Size of Phase Space[J]. Chinese Physics C, 1996, 20(9): 783-788. shu

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

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沈阳化工大学材料科学与工程学院沈阳 110142

The Ratio of Factorial Cumulant to Factorial Moment Versus the Size of Phase Space

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: 1996-09-05

Abstract: The ratio of factorial cumulant to factorial moment of multiplicity distributions in different pseudorapidity windows has been calculated by using the experimental data of multiplicity production for pp collisions at 400GeV/c.The results show that the ratio H_q exhibits an initial abrupt descent and then an oscillation around zero when the order q is increased.It is coincident with the PQCD prediction.The difference is that the position of the first minimum moves to higher rank when the pseudorapidity window becomes smaller.