The Long Slow Death of the HBT Puzzle, Proceedings for QM 2009

Abstract

At the onset of the RHIC era femtoscopic source sizes inferred from two-particle correlations at RHIC defied description with hydrodynamic models. This failure, which became known as the HBT puzzle, now appears to be solved. The source of the discrepancy appears to be a conspiracy of several factors, each of which contributed to making the evolution of RHIC collisions more explosive. These included pre-equilibrium flow, using a stiffer equation of state and adding viscosity.

Proceedings for Quark Matter 2009, Knoxville, TN USA, (fixed typos in previous version)

References in corpus (5)

• Viscosity Information from Relativistic Nuclear Collisions: How Perfect is the Fluid Observed at RHIC?
• Cosmic Calibration: Constraints from the Matter Power Spectrum and the Cosmic Microwave Background
• Initial condition for hydrodynamics, partonic free streaming, and the uniform description of soft observables at RHIC
• Femtoscopy in hydro-inspired models with resonances
• Transport model study of the $m_T$-scaling for $\Lambda$, K, and $\pi$ HBT-correlations

Cited by in corpus (20)

• Event-by-Event Simulation of the Three-Dimensional Hydrodynamic Evolution from Flux Tube Initial Conditions in Ultrarelativistic Heavy Ion Collisions
• Two-pion Bose-Einstein correlations in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Open Heavy Flavor in QCD Matter and in Nuclear Collisions
• Femtoscopy of pp collisions at $\sqrt{s}$=0.9 and 7 TeV at the LHC with two-pion Bose-Einstein correlations
• Uniform description of bulk observables in the hydrokinetic model of A+A collisions at RHIC and LHC
• Centrality dependence of pion freeze-out radii in Pb-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathbf{NN}}}$=2.76 TeV
• Hydrodynamics at RHIC and LHC: What have we learned?
• Flow and interferometry results from Au+Au collisions at $\sqrt{{\text{s}}_{NN}}$ = 4.5 GeV
• Pion, kaon, and proton femtoscopy in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}$=2.76 TeV modeled in 3+1D hydrodynamics
• Examination of scaling of Hanbury-Brown--Twiss radii with charged particle multiplicity
• Correlation femtoscopy study at NICA and STAR energies within a viscous hydrodynamic plus cascade model
• Early anisotropic hydrodynamics and the RHIC early-thermalization and HBT puzzles
• Rapidity scaling of multiplicity and flow in weakly and strongly interacting systems
• Pion-kaon femtoscopy in Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV modeled in (3+1)D hydrodynamics coupled to Therminator 2 and the effect of delayed kaon emission
• Interferometric signatures of the temperature dependence of the specific shear viscosity in heavy-ion collisions
• System-size dependence of the pion freeze-out volume as a potential signature for the phase transition to a Quark Gluon Plasma
• Hydrokinetic predictions for femtoscopy scales in A+A collisions in the light of recent ALICE LHC results
• Relativistic Heavy Ion Collisions: Viscous Hydrodynamic Simulations and Final State Interactions
• Heavy quarks and the collective properties of hot QCD
• NA49 evidence for the onset of deconfinement