Rapidity dependence of proton cumulants and correlation functions

Abstract

The dependence of multi-proton correlation functions and cumulants on the acceptance in rapidity and transverse momentum is studied. We find that the preliminary data of various cumulant ratios are consistent, within errors, with rapidity and transverse momentum independent correlation functions. However, rapidity correlations which moderately increase with rapidity separation between protons are slightly favored. We propose to further explore the rapidity dependence of multi-particle correlation functions by measuring the dependence of the integrated reduced correlation functions as a function of the size of the rapidity window.

13 pages, 5 figures

References in corpus (4)

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• Centrality dependence of proton and antiproton spectra in Pb+Pb collisions at 40A GeV and 158A GeV measured at the CERN SPS
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Cited by in corpus (6)

• Critical lensing and kurtosis near a critical point in the QCD phase diagram in and out-of-equilibrium
• Dynamics of critical fluctuations: Theory -- phenomenology -- heavy-ion collisions
• Dynamical development of proton cumulants and correlation functions in Au+Au collisions at $\sqrt{s_{NN}}=7.7$ GeV from a multiphase transport model
• Critical point particle number fluctuations from molecular dynamics
• Intermittency of charged particles in the hybrid UrQMD+CMC model at energies available at the BNL Relativistic Heavy Ion Collider
• Unified Functional-Holographic Theory of the QCD Critical End Point