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arXiv · 1804.04463

Large proton cumulants from the superposition of ordinary multiplicity distributions

Adam Bzdak·Volker Koch·Dmytro Oliinychenko·Jan Steinheimer
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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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Adam Bzdak, Volker Koch, Dmytro Oliinychenko, Jan Steinheimer. 2018-04-12. Large proton cumulants from the superposition of ordinary multiplicity distributions. https://doi.org/10.1103/physrevc.98.054901

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