Solution of the RHIC HBT puzzle with Gaussian initial conditions
arXiv:0812.4125 · doi:10.1088/0954-3899/36/6/064067
Abstract
It is argued that the consistent description of the transverse-momentum spectra, elliptic flow, and the HBT radii in the relativistic heavy-ion collisions studied at RHIC may be obtained within the hydrodynamic model if one uses the Gaussian profile for the initial energy density in the transverse plane. Moreover, we show that the results obtained in the scenario with an early start of hydrodynamics (at the proper time tau0 = 0.25 fm) are practically equivalent to the results obtained in the model where the hydrodynamics is preceded by the free-streaming stage of partons (in the proper time interval 0.25 fm < tau < 1 fm) which suddenly equilibrate and with the help of the Landau matching conditions are transformed into the hydrodynamic regime (at the proper time tau0 = 1 fm).
talk presented by WF at SQM2008 Conference
References in corpus (13)
- Femtoscopy in Relativistic Heavy Ion Collisions: Two Decades of Progress
- Early thermalization at RHIC
- Hydrodynamic Models for Heavy Ion Collisions
- Pion interferometry in Au+Au collisions at = 200 GeV
- Description of the RHIC p_T-spectra in a thermal model with expansion
- GLISSANDO: GLauber Initial-State Simulation AND mOre
- Therminator: Thermal heavy-Ion generator
- Initial condition for hydrodynamics, partonic free streaming, and the uniform description of soft observables at RHIC
- Fluctuations of the Initial Conditions and the Continuous Emission in Hydrodynamic Description of Two-Pion Interferometry
- Hydrodynamical analysis of hadronic spectra in the 130 GeV/nucleon Au+Au collisions
- Soft heavy-ion physics from hydrodynamics with statistical hadronization - predictions for the Large Hadron Collider
- Collective flow and HBT radii from a full 3D hydrodynamic model with early chemical freeze out
- Space-time evolution and HBT analysis of relativistic heavy ion collisions in a chiral SU(3) x SU(3) model