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Nuclear Theory

arXiv:1606.05358 (nucl-th)
[Submitted on 16 Jun 2016 (v1), last revised 28 Jun 2016 (this version, v2)]

Title:Participant number fluctuations for higher moments of a multiplicity distribution

Authors:Viktor Begun
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Abstract:The independent participant model is generalized for skewness and kurtosis. The obtained relations allow to calculate the fluctuations of an arbitrarily high order. From the comparison with the SPS and the LHC data it is found that the participants are not nucleons. The contribution of the participant fluctuations increases with the order of fluctuations. The 5% centrality bins selected for the analysis at the LHC by ALICE seems to be too large. The fluctuations measures are dominated by the fluctuations of participants there. The method to quantify the value of participant number fluctuations experimentally is proposed.
Comments: The text is improved. One figure is added
Subjects: Nuclear Theory (nucl-th); High Energy Physics - Experiment (hep-ex); High Energy Physics - Phenomenology (hep-ph); Nuclear Experiment (nucl-ex)
Cite as: arXiv:1606.05358 [nucl-th]
  (or arXiv:1606.05358v2 [nucl-th] for this version)
  https://doi.org/10.48550/arXiv.1606.05358

Submission history

From: Viktor Begun [view email]
[v1] Thu, 16 Jun 2016 20:06:19 UTC (57 KB)
[v2] Tue, 28 Jun 2016 23:55:24 UTC (102 KB)
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