Dynamics of critical fluctuations: Theory -- phenomenology -- heavy-ion collisions

Abstract

This report summarizes the presentations and discussions during the Rapid Reaction Task Force "Dynamics of critical fluctuations: Theory -- phenomenology -- heavy-ion collisions", which was organized by the ExtreMe Matter Institute EMMI and held at GSI, Darmstadt, Germany in April 2019. We address the current understanding of the dynamics of critical fluctuations in QCD and their measurement in heavy-ion collision experiments. In addition, we outline what might be learned from studying correlations in other physical systems, such as cold atomic gases.

arXiv comment89 pages, 11 figures, report on an ExtreMe Matter Institute EMMI Rapid Reaction Task Force

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• Hydrodynamic Fluctuations, Long-time Tails, and Supersymmetry
• Acceptance corrections to net baryon and net charge cumulants
• Volume fluctuations and higher order cumulants of the net baryon number
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• Collision Energy Dependence of Moments of Net-Kaon Multiplicity Distributions at RHIC
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• Net-charge fluctuations in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
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• Diffusive Transport Enhanced by Thermal Velocity Fluctuations
• Real-Time Correlation Functions in the O(N) Model from the Functional Renormalization Group
• Cumulants and Correlation Functions vs the QCD phase diagram
• More efficient formulas for efficiency correction of cumulants and effect of using averaged efficiency
• Multiplicity fluctuations in relativistic nuclear collisions: statistical model versus experimental data
• Charge correlations using the balance function in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
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• On Normalization of Strongly Intensive Quantities
• K/pi Fluctuations at Relativistic Energies
• Hydro+ in Action: Understanding the Out-of-Equilibrium Dynamics Near a Critical Point in the QCD Phase Diagram
• Chemical freeze-out in heavy ion collisions at large baryon densities
• Bulk viscosity from hydrodynamic fluctuations with relativistic hydro-kinetic theory
• Determination of Freeze-out Conditions from Lattice QCD Calculations
• Transits of the QCD Critical Point
• Equilibration and relaxation times at the chiral phase transition including reheating
• Finite temperature spectral functions in the O(N)-model
• Beam-Energy and System-Size Dependence of Dynamical Net Charge Fluctuations
• Finite-size scaling as a tool in the search for the QCD critical point in heavy ion data
• Particlization with local event-by-event conservation laws
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• Baryon preclustering at the freeze-out of heavy-ion collisions and light-nuclei production
• Net-baryon-, net-proton-, and net-charge kurtosis in heavy-ion collisions within a relativistic transport approach
• Hydrodynamic fluctuations and dissipation in an integrated dynamical model
• Nonequilibrium time evolution of higher order cumulants of conserved charges and event-by-event analysis
• Hydrodynamics of charge fluctuations and balance functions
• Stochastic treatment of Disoriented Chiral Condensates within a Langevin description
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• A kinetic regime of hydrodynamic fluctuations and long time tails for a Bjorken expansion
• Bound state properties from the Functional Renormalisation Group
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• Collision Energy Dependence of $p_{\mathrm{t}}$ Correlations in Au+Au Collisions at RHIC
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• Dynamical evolution of critical fluctuations and its observation in heavy ion collisions
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• The Role of Baryon Number Conservation in Measurements of Fluctuations
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• Net-baryon number variance and kurtosis within nonequilibrium chiral fluid dynamics
• Impact of resonance decays on critical point signals in net-proton fluctuations
• Causal Electric Charge Diffusion and Balance Functions in Relativistic Heavy Ion Collisions
• Identity Method for Particle Number Fluctuations and Correlations
• Rapidity dependence of proton cumulants and correlation functions
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• On the energy dependence of $K/\pi$ fluctuations in relativistic heavy ion collisions
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• Rapidity window dependences of higher order cumulants and diffusion master equation
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• Critical versus spurious fluctuations in the search for the QCD critical point
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• Influence of an inhomogeneous and expanding medium on signals of the QCD phase transition
• Identity Method Revisited
• Phenomena at the QCD phase transition in nonequilibrium chiral fluid dynamics (N$\chi$FD)
• Transverse Momentum and Multiplicity Fluctuations in Ar+Sc Collisions at the CERN SPS from NA61/SHINE
• Baryon number diffusion with critical fluctuations
• Transverse momentum and multiplicity fluctuations in Ar+Sc collisions at the CERN SPS from NA61/SHINE
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• Investigating correlated fluctuations of conserved charges with net-$\Lambda$ fluctuations in Pb-Pb collisions at ALICE
• Spinodal Instability at the Onset of Collective Expansion in Nuclear Collisions
• Finite size effects on cumulants of the critical mode

Cited by in corpus (7)

• Modeling the diffusive dynamics of critical fluctuations near the QCD critical point
• Critical point fluctuations: Finite size and global charge conservation effects
• Critical dynamics of relativistic diffusion
• Critical fluctuations in a dynamically expanding heavy-ion collision
• Hydrodynamic generators in relativistic kinetic theory
• Cumulants of conserved charges in hydrodynamic simulations
• Entropy Production in Dissipationless Hydrodynamics with an order parameter