Imprints of clustering in multiplicity fluctuations

Abstract

In this paper, we investigate the multiplicity fluctuations of charged particles observed in high-energy nuclear collisions and relate them to the size of hadronizing systems which happen during such processes. We use the average multiplicities $⟨N⟩$ and variances $Var\left(N\right)$ of multiplicity distributions of charged particles produced in centrality selected collisions of relativistic heavy-ion nuclei to evaluate the dynamic variable $\Omega$ and study its dependence on the size of colliding nuclei. We connect the observed system-size dependence of multiplicity fluctuations with the clustering phenomena and the finiteness of the hadronizing sources and the thermal bath.

References in corpus (34)

• Signatures of the Tricritical Point in QCD
• Event-by-Event Fluctuations in Heavy Ion Collisions and the QCD Critical Point
• Fluctuation Probes of Quark Deconfinement
• Charged Particle Ratio Fluctuation as a Signal for QGP
• Thermal hadron production in pp and p{\bar p} collisions
• Thermal Hadron Production in High Energy Heavy Ion Collisions
• GLISSANDO: GLauber Initial-State Simulation AND mOre
• Thermal Hadronization and Hawking-Unruh Radiation in QCD
• Excluded volume hadron gas model for particle number ratios in A+A collisions
• Particle Number Fluctuations in Canonical Ensemble
• Multiplicity fluctuations due to the temperature fluctuations in high-energy nuclear collisions
• Charged hadron multiplicity fluctuations in Au+Au and Cu+Cu collisions from sqrt(s_NN) = 22.5 to 200 GeV
• Hadronic matter compressibility from event-by-event analysis of heavy-ion collisions
• Event-by-Event Fluctuations in Particle Multiplicities and Transverse Energy Produced in 158.A GeV Pb+Pb collisions
• On Chemical Equilibrium in Nuclear Collisions
• Electric charge fluctuations in central Pb+Pb collisions at 20, 30, 40, 80 and 158 AGeV
• Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeV
• Kurtosis and compressibility near the chiral phase transition
• Hadronic fluctuations in the QGP
• Event-by-Event Fluctuations at 40, 80, and 158 AGeV/c in Pb+Au Collisions
• Fluctuation Probes of Early-Time Correlations in Nuclear Collisions
• Baryon clustering at the critical line and near the hypothetical critical point in heavy-ion collisions
• Correlations and Fluctuations in High-Energy Nuclear Collisions
• Exact Baryon, Strangeness and Charge Conservation in Hadronic Gas Models
• Non-monotonic behavior of multiplicity fluctuations
• Multiplicity fluctuations in the hadron gas with exact conservation laws
• Chemical factors in canonical statistical models for relativistic heavy ion collisions
• What is the meaning of the statistical hadronization model?
• Hadron yields and fluctuations at the CERN Super Proton Synchrotron: system size dependence from Pb+Pb to p+p collisions
• Event-by-event fluctuations and the QGP
• On the Limiting Cases of Nonextensive Thermostatistics
• Scaling Properties of Fluctuation and Correlation Results from PHENIX
• Charged-particle multiplicity fluctuations in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Fluctuations and clustering of multiplicity in collisions of relativistic ions