Identity method to study chemical fluctuations in relativistic heavy-ion collisions

Abstract

Event-by-event fluctuations of the chemical composition of the hadronic final state of relativistic heavy-ion collisions carry valuable information on the properties of strongly interacting matter produced in the collisions. However, in experiments incomplete particle identification distorts the observed fluctuation signals. The effect is quantitatively studied and a new technique for measuring chemical fluctuations, the identity method, is proposed. The method fully eliminates the effect of incomplete particle identification. The application of the identity method to experimental data is explained.

8 pages

References in corpus (10)

• Baryon-strangeness correlations: a diagnostic of strongly interacting matter
• Transverse Momentum Fluctuations in Nuclear Collisions at 158 AGeV
• Event-by-event fluctuations of the kaon to pion ratio in central Pb+Pb collisions at 158 GeV per Nucleon
• Energy dependence of particle ratio fluctuations in central Pb+Pb collisions from $\sqrt{s_{{}_{NN}}}=$~6.3 to 17.3 GeV
• K/pi Fluctuations at Relativistic Energies
• Signals of spinodal hadronization: strangeness trapping
• Fluctuations of Strangeness and Deconfinement Phase Transition in Nucleus-Nucleus Collisions
• Electric charge fluctuations in central Pb+Pb collisions at 20, 30, 40, 80 and 158 AGeV
• Chemical fluctuations in high-energy nuclear collisions
• Fluctuations of the azimuthal particle distribution in NA49 at the CERN SPS

Cited by in corpus (22)

• Global baryon number conservation encoded in net-proton fluctuations measured in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Identity Method for the Determination of the Moments of Multiplicity Distributions
• Net-baryon fluctuations measured with ALICE at the CERN LHC
• Identity Method for Particle Number Fluctuations and Correlations
• Phase-space dependence of particle-ratio fluctuations in Pb+Pb collisions from 20A to 158A GeV beam energy
• Relative particle yield fluctuations in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathrm{NN}}}=2.76$ TeV
• Recent Developments in the Study of Deconfinement in Nucleus-Nucleus Collisions
• Dynamics of critical fluctuations: Theory -- phenomenology -- heavy-ion collisions
• Event-by-Event Identified Particle Ratio Fluctuations in Pb-Pb Collisions with ALICE using the Identity Method
• Multiplicity fluctuations of identified hadrons in p+p interactions at SPS energies
• Closing in on critical net-baryon fluctuations at LHC energies: cumulants up to third order in Pb$-$Pb collisions
• TIdentity module for the reconstruction of the moments of multiplicity distributions
• System size dependence of particle-ratio fluctuations in Pb+Pb collisions at 158$A$ GeV
• Overview of fluctuation and correlation measurements
• Investigating correlated fluctuations of conserved charges with net-$\Lambda$ fluctuations in Pb-Pb collisions at ALICE
• Measurements of multiplicity fluctuations of identified hadrons in inelastic proton-proton interactions at the CERN Super Proton Synchrotron
• Particle-Set Identification method to study multiplicity fluctuations
• Recent results from NA61/SHINE and NA49
• Reconstruction of moments of particle distributions with Identity Method at MPD
• New results from fluctuation analysis in NA49 at the CERN SPS
• Heavy-ion physics at the CERN SPS H2: NA35, NA49 and NA61/SHINE (with personal recollections)
• Recent developments in particle yield fluctuation measurements