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

  • 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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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

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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