Can Momentum Correlations Proof Kinetic Equilibration in Heavy Ion Collisions at 160 AGeV?

Abstract

We perform an event-by-event analysis of the transverse momentum distribution of final state particles in central Pb(160AGeV)+Pb collisions within a microscopic non-equilibrium transport model (UrQMD). Strong influence of rescattering is found. The extracted momentum distributions show less fluctuations in A+A collisions than in p+p reactions. This is in contrast to simplified p+p extrapolations and random walk models.

9 pages, 3 eps figures, submitted to Phys. Lett. B

References in corpus (3)

• Microscopic Models for Ultrarelativistic Heavy Ion Collisions
• Are we close to the QGP? - Hadrochemical vs. microscopic analysis of particle production in ultrarelativistic heavy ion collisions
• The Origin of Transverse Flow at the SPS

Cited by in corpus (49)

• Relativistic Hadron-Hadron Collisions in the Ultra-Relativistic Quantum Molecular Dynamics Model (UrQMD)
• Event-by-event fluctuations of average transverse momentum in central Pb+Pb collisions at 158 GeV per nucleon
• Event-by-event fluctuations in collective quantities
• Event-by-event fluctuations of the charged particle ratio from non-equilibrium transport theory
• Last Call for RHIC Predictions
• Transverse Momentum Fluctuations in Nuclear Collisions at 158 AGeV
• Multiplicity Fluctuations in Hadron-Resonance Gas
• Modelling J/psi production and absorption in a microscopic nonequilibrium approach
• On Normalization of Strongly Intensive Quantities
• Particle Number Fluctuations in High Energy Nucleus-Nucleus Collisions from Microscopic Transport Approaches
• Generalizing Phi-measure of event-by-event fluctuations in high-energy heavy-ion collisions
• Net-baryon-, net-proton-, and net-charge kurtosis in heavy-ion collisions within a relativistic transport approach
• Statistical Mechanics of semi-classical colored Objects
• Charged particle (pseudo-)rapidity distributions in proton+anti-proton/proton+proton and Pb+Pb/Au+Au collisions from SPS to LHC energies from UrQMD
• Chemical fluctuations in high-energy nuclear collisions
• Equation of state of resonance-rich matter in the central cell in heavy-ion collisions at $\sqrt{s}$=200 AGeV
• The effects of nonextensive statistics on fluctuations investigated in event-by-event analysis of data
• Local equilibrium in heavy-ion collisions: Microscopic analysis of a central cell versus infinite matter
• Centrality selection effect on higher-order cumulants of net-proton multiplicity distributions in relativistic heavy-ion collisions
• Multiplicity fluctuations in the string clustering approach
• Diagonal and off-diagonal susceptibilities of conserved quantities in relativistic heavy-ion collisions
• Transverse momentum versus multiplicity fluctuations in high-energy nuclear collisions
• Strongly Intensive Measures for Transverse Momentum and Particle Number Fluctuations
• Forward-Backward Charge Fluctuations at RHIC Energies
• Baryon Number and Electric Charge Fluctuations in Pb+Pb Collisions at SPS energies
• Searching for the Critical Point of QCD: Theoretical Benchmark Calculations
• The Origin of Transverse Flow at the SPS
• The Effect of Dynamical Parton Recombination on Event-by-Event Observables
• Event-by-Event Analysis of Baryon-Strangeness Correlations: Pinning Down the Critical Temperature and Volume of QGP Formation
• Isothermal compressibility of hadronic matter formed in relativistic nuclear collisions
• Limitations of the $\Phi$ measure of fluctuations in event-by-event analysis
• Behavior of the charge fluctuation in relativistic nucleus-nucleus collisions
• Global observables and secondary interactions in central Au+Au reactions at $\sqrt{s}=200$ AGeV
• Multiplicity and pseudorapidity density distributions of charged particles produced in pp, pA and AA collisions at RHIC \& LHC energies
• Event-By-Event Fluctuation of Maximum Particle Density in Narrow Pseudo-Rapidity Interval at a Few AGeV/c
• Transition to resonance-rich matter in heavy ion collisions at RHIC energies
• Strongly Intensive Measures for Particle Number Fluctuations: Effects of Hadronic Resonances
• Event by Event analysis of Maximum Pseudo-rapidity Gap Fluctuation in High energy Nucleus-nucleus Collisions
• Energy and Transverse Momentum Fluctuations in the Equilibrium Quantum Systems
• Influence of Impact Parameter Fluctuations on Transverse Momentum Fluctuations
• Effects of nuclear absorption on the antiLambda/antiproton ratio in relativistic heavy ion collisions
• Fluctuations of identified particle yields using the ν dyn variable at energies available at the BNL Relativistic Heavy Ion Collider
• Efficiency corrections for mutually inclusive variables and particle identification effect for mixed-cumulants in heavy-ion collisions
• Minimizing statistical and systematic bias in transverse momentum correlations for relativistic heavy-ion collisions
• Understanding $K/\pi$ ratio distribution in the mixed events
• Influence of statistical fluctuations on $K/\pi$ ratios in relativistic heavy ion collisions
• Energy and system size dependence of strongly intensive fluctuation measures in heavy-ion collisions at FAIR energies
• Some Considerations concerning the Fluctuation of the Ratios of two Observables
• Study of diffusion coefficients of identified particles at energies available at BNL Relativistic Heavy Ion Collider