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Chinese Physics C> 2002, Vol. 26> Issue(3) : 216-221 

Analysis of the Fluctuations in the Event-Space for NA27 Data

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

  • The event-space moments Cp,q(M) have been calculated using the method of single-event factorial moments. Comparing this with the calculated results for the pure statistical fluctuations Monte-Carlo event sample, the variations of the moments Cp,q(M) with M are caused dominantly by the statistical fluctuation. The erraticity analysis of the pseudorapidity gaps is performed for the NA27 data. The entropy-like quantities Sq and Σq are calculated. It is found that Sq and Σq deviate significantly from 1. Sq and ∑q versus q have exponential behavior. FRITIOF simulation can reproduce the scaling behavior, but the deviations of the values from the experimental data are rather large.
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    [1] . de Wolf E A, Dremin I M, Kittel W. Phys. Rep., 1996, 270: 1 2. CAO Zhen, Hwa Rudolph C. Phys. Rev. Lett., 1995, 75: 1268 3. CAO Zhen, Hwa Rudolph C. Phys. Rev., 1996, D54: 66744. CAO Zhen, Hwa Rudolph C. Phys. Rev., 1997, E56: 3265. CAO Zhen, Hwa Rudolph C. Phys. Rev., 2000, D61: 074011—1 6. WANG Shao-Shun, WANG Zhao-Ming. Phys. Lett., 1998, B416: 216 7. FU Jing-Hua, WU Yuan-Fang, LIU Lian-Shou. Phys. Lett., 2000, B472:-1618. LIU Lian-Shou, FU Jing-Hua, WU Yuan-Fang. Science in China(Series A), 2000, 43: 12159. WANG Shao-Shun, WU Chong. High Energy Phys. and Nucl. Phys. 2000, 24(4): 285—289(in Chinese)(王韶舜, 吴冲. 高能物理与核物理, 2000, 24(4): 285—289)10. Hwa Rudolph C, ZHANG Qing-Hui. Phys. Rev., 2000. D62: 014000311. Bialas A, Gardzicki M. Phys. Lett., 1990, B252: 48312. Ochs W. Z. Phys., 1991, C50: 33913. WANG Shao-Shun et al. Z. Phys., 1995, C68: 41514. Andersson B, Gustafson G, HONG Pi. Z. Phys., 1993, C57: 485 15. HONG Pi. Lund Monte Carlo for Hadron Hadron, Hadron Nucleus, and Nucleus Nucleus Collisions. Lund University, Program Draft Code: 2931114, 1993 16. WANG Shao-Shun, WU Chong. High Energy Phys. and Nucl. Phys. 2001. 25(3): 183(in Chinese)(王韶舜, 吴冲. 高能物理与核物理, 2001, 25(3): 183)

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WANG Shao-Shun and WU Chong. Analysis of the Fluctuations in the Event-Space for NA27 Data[J]. Chinese Physics C, 2002, 26(3): 216-221.
WANG Shao-Shun and WU Chong. Analysis of the Fluctuations in the Event-Space for NA27 Data[J]. Chinese Physics C, 2002, 26(3): 216-221. shu
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Received: 2001-03-27
Revised: 1900-01-01
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Analysis of the Fluctuations in the Event-Space for NA27 Data

    Corresponding author: WANG Shao-Shun,
  • Department of Modern Physics, University of Science and Technology of China, Hefei 230027, China
  • Received Date: 2001-03-27
  • Accepted Date: 1900-01-01
  • Available Online: 2002-03-05

Abstract: The event-space moments Cp,q(M) have been calculated using the method of single-event factorial moments. Comparing this with the calculated results for the pure statistical fluctuations Monte-Carlo event sample, the variations of the moments Cp,q(M) with M are caused dominantly by the statistical fluctuation. The erraticity analysis of the pseudorapidity gaps is performed for the NA27 data. The entropy-like quantities Sq and Σq are calculated. It is found that Sq and Σq deviate significantly from 1. Sq and ∑q versus q have exponential behavior. FRITIOF simulation can reproduce the scaling behavior, but the deviations of the values from the experimental data are rather large.

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