Early anisotropic hydrodynamics and the RHIC early-thermalization and HBT puzzles
arXiv:1004.1594 · doi:10.1103/PhysRevC.82.024903
Abstract
We address the problem if the early thermalization and HBT puzzles in relativistic heavy-ion collisions may be solved by the assumption that the early dynamics of the produced matter is locally anisotropic. The hybrid model describing the purely transverse hydrodynamic evolution followed by the perfect-fluid hydrodynamic stage is constructed. The transition from the transverse to perfect-fluid hydrodynamics is described by the Landau matching conditions applied at a fixed proper time. The global fit to the RHIC data reproduces the soft hadronic observables (the pion, kaon, and the proton spectra, the pion and kaon elliptic flow, and the pion HBT radii) with the accuracy of about 20%. These results indicate that the assumption of the very fast thermalization may be relaxed. In addition, the presented model suggests that a large part of the inconsistencies between the theoretical and experimental HBT results may be removed.
arXiv commentreplaced with the version published in Phys.Rev.C 82
References in corpus (36)
- Identified Charged Particle Spectra and Yields in Au+Au Collisions at sqrt(s_NN) = 200 GeV
- Flow at the SPS and RHIC as a Quark Gluon Plasma Signature
- What RHIC Experiments and Theory tell us about Properties of Quark-Gluon Plasma ?
- Hadron production in nuclear collisions at RHIC and high density QCD
- Elliptic Flow of Identified Hadrons in Au+Au Collisions at sqrt(s_NN) = 200 GeV
- QCD Equation of State and Hadron Resonance Gas
- Centrality dependence of multiplicity, transverse energy, and elliptic flow from hydrodynamics
- Space-time evolution of bulk QCD matter
- Pion interferometry in Au+Au collisions at = 200 GeV
- Bulk and shear viscosities of matter created in relativistic heavy-ion collisions
- Description of the RHIC p_T-spectra in a thermal model with expansion
- Bose-Einstein Correlations of Charged Pion Pairs in Au+Au Collisions at sqrt(s_NN)=200_ GeV
- Therminator: Thermal heavy-Ion generator
- Gluon production in the Color Glass Condensate model of collisions of ultrarelativistic finite nuclei
- Energy density of the Glasma
- Collision geometry scaling of Au+Au pseudorapidity density from sqrt(s_NN) = 19.6 to 200 GeV
- Initial condition for hydrodynamics, partonic free streaming, and the uniform description of soft observables at RHIC
- Fluctuations of string tension and transverse mass distribution
- Free-streaming approximation in early dynamics of relativistic heavy-ion collisions
- Femtoscopy in hydro-inspired models with resonances
- 3D Relativistic Hydrodynamic Computations Using Lattice-QCD-Inspired Equations of State
- Rapid hydrodynamic expansion in relativistic heavy-ion collisions
- Can Thermalization in Heavy Ion Collisions be Described by QCD Diagrams?
- Elliptic Flow from a Hybrid CGC, Full 3D Hydro and Hadronic Cascade Model
- Elliptic Flow from a Transversally Thermalized Fireball
- Soft heavy-ion physics from hydrodynamics with statistical hadronization - predictions for the Large Hadron Collider
- On the formation of Hubble flow in Little Bangs
- Initial fields and instability in the classical model of the heavy-ion collision
- The Long Slow Death of the HBT Puzzle, Proceedings for QM 2009
- Early evolution of transversally thermalized partons
- Characteristic form of boost-invariant and cylindrically non-symmetric hydrodynamic equations
- Early Time Dynamics in Heavy Ion Collisions from CGC and from AdS/CFT
- Isotropization and Thermalization in Heavy Ion Collisions
- General formulation of transverse hydrodynamics
- Elliptic flow from partially thermalized heavy-ion collisions
- Transverse hydrodynamics with sudden hadronization -- production of strangeness
Cited by in corpus (15)
- Highly-anisotropic and strongly-dissipative hydrodynamics for early stages of relativistic heavy-ion collisions
- Thermodynamics and Instabilities of a Strongly Coupled Anisotropic Plasma
- Highly-anisotropic hydrodynamics in 3+1 space-time dimensions
- Drag force in a strongly coupled anisotropic plasma
- Highly-anisotropic and strongly-dissipative hydrodynamics with transverse expansion
- Quarkonium dissociation by anisotropy
- Projection method for boost-invariant and cylindrically symmetric dissipative hydrodynamics
- Chiral condensate in hadronic matter
- Holographic quark-antiquark potential in hot, anisotropic Yang-Mills plasma
- Asymmetric 1+1-dimensional hydrodynamics in collision
- Basic phenomenology for relativistic heavy-ion collisions
- Light Probes in a Strongly Coupled Anisotropic Plasma
- Hydrodynamic attractors for the speed of sound in holographic Bjorken flow
- JefiGPU: Jefimenko's Equations on GPU
- Holographic study on the jet quenching parameter in anisotropic systems