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Large proton cumulants from the superposition of ordinary multiplicity distributions

  • Author(s): Bzdak, A
  • Koch, V
  • Oliinychenko, D
  • Steinheimer, J
  • et al.
Abstract

We construct a multiplicity distribution characterized by large factorial cumulants (integrated correlation functions) from a simple combination of two ordinary multiplicity distributions characterized by small factorial cumulants. We find that such a model, which could be interpreted as representing two event classes, reproduces the preliminary data for the proton cumulants measured by the STAR collaboration at 7.7 GeV very well. This model then predicts very large values for the fifth and sixth order factorial cumulants, which can be tested in experiment.

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