Abstract
At energies of a few GeV per nucleon, nuclear collisions exhibit phenomena more complex than the individualistic nucleon interactions observed at much higher energies. From recent results on proton number fluctuations in Au+Au collisions at sNN=2.4 GeV obtained by the HADES experiment at GSI, we suggest that measuring the multiplicity distributions heavy-ion collisions can be used to probe density fluctuations associated with correlation phenomena. Using the combinant analysis, we demonstrate that the proton multiplicity distributions can be described by a compound Poisson-binomial distribution, suggesting the formation of clusters as a possible mechanism of such proton number fluctuations.
Published Version
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