Transverse momentum versus multiplicity fluctuations in high-energy nuclear collisions

Abstract

We discuss recently measured event-by-event fluctuations of transverse momentum and of multiplicity in relativistic heavy-ion collisions. It is shown that the non-monotonic behavior of the p_T-fluctuations as a function of collision centrality can be fully explained by the observed non-monotonic multiplicity fluctuations. A possible mechanism responsible for the multiplicity fluctuations is also considered.

arXiv comment5 pages, 3 figures, revised & extended, to appear in Phys. Rev. C

References in corpus (20)

• Event-by-Event Fluctuations in Heavy Ion Collisions and the QCD Critical Point
• Energy Dependence of Pion and Kaon Production in Central Pb+Pb Collisions
• Event-by-event fluctuations of average transverse momentum in central Pb+Pb collisions at 158 GeV per nucleon
• Event-by-Event Fluctuations from Decay of a Polyakov Loop Condensate
• Event-by-event fluctuations of the mean transverse momentum in 40, 80, and 158 A GeV/c Pb-Au collisions
• Report from NA49
• Transverse Momentum Fluctuations in Nuclear Collisions at 158 AGeV
• Event-by-event fluctuations in Mean $p_T$ and Mean $e_T$ in sqrt(s_NN) = 130 GeV Au+Au Collisions
• Event-by-Event Fluctuations in Ultrarelativistic Heavy-Ion Collisions
• Traces of Thermalization from Transverse Momentum Fluctuations in Nuclear Collisions
• Can Momentum Correlations Proof Kinetic Equilibration in Heavy Ion Collisions at 160 AGeV?
• Transverse momentum fluctuations due to temperature variation in high-energy nuclear collisions
• Generalizing Phi-measure of event-by-event fluctuations in high-energy heavy-ion collisions
• Transverse momentum and energy correlations in the equilibrium system from high-energy nuclear collisions
• Transverse momentum fluctuations and percolation of strings
• On Event-by-Event Fluctuations in Nuclear Collisions
• Thermal fluctuations in the interacting pion gas
• Jet quenching and event-wise mean-pt fluctuations in Au-Au collisions at sqrt-sNN = 200 GeV in Hijing-1.37
• An Overview of Fluctuation and Correlation Results in Relativistic Heavy Ion Collisions
• p_T-fluctuations in high-energy p-p and A-A collisions

Cited by in corpus (16)

• Transverse-momentum fluctuations in relativistic heavy-ion collisions from event-by-event viscous hydrodynamics
• Multiplicity fluctuations due to the temperature fluctuations in high-energy nuclear collisions
• Energy Dependence of Multiplicity Fluctuations in Heavy Ion Collisions at the CERN SPS
• Centrality and system size dependence of multiplicity fluctuations in nuclear collisions at 158 AGeV
• Fluctuation Probes of Early-Time Correlations in Nuclear Collisions
• Transverse momentum fluctuations in ultrarelativistic Pb+Pb and p+Pb collisions with wounded quarks
• Scale-dependence of transverse momentum correlations in Pb-Au collisions at 158A GeV/c
• Multiplicity fluctuations in the string clustering approach
• Strongly Intensive Measures for Transverse Momentum and Particle Number Fluctuations
• Searching for the Critical Point of QCD: Theoretical Benchmark Calculations
• 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
• Multiplicity Fluctuations in Limited Segments of Momentum Space in Statistical Models
• Saturation momentum scale extracted from semi-inclusive transverse spectra in high-energy pp collisions
• Strongly Intensive Measures for Particle Number Fluctuations: Effects of Hadronic Resonances
• Correlation of transverse momentum and multiplicity in a superposition model of nucleus-nucleus collisions