Flow and vorticity with varying chemical potential in relativistic heavy ion collisions
arXiv:1902.08368 · doi:10.1142/S0218301320500019
Abstract
We study the vorticity patterns in relativistic heavy ion collisions with respect to the collision energy. The collision energy is related to the chemical potential used in the thermal - statistical models that assume approximate chemical equilibrium after the relativistic collision. We use the multiphase transport model (AMPT) to study the vorticity in the initial parton phase as well as the final hadronic phase of the relativistic heavy ion collision. We find that as the chemical potential increases,the vortices are larger in size. Using different definitions of vorticity, we find that vorticity plays a greater role at lower collision energies than at higher collision energies. We also look at other effects of the flow patterns related to the bulk viscosity and the shear viscosity at different collision energies. We find that the shear viscosity obtained is almost a constant with a small decrease at higher collision energies. We also look at the elliptic flow as it is related to viscous effects in the final stages after the collision. Our results indicate that viscosity plays a greater role at higher chemical potential and lower collision energies.
arXiv commentRevised version contains revised graphs of average vorticity, new graphs for thermal vorticity and specific shear viscosity
References in corpus (30)
- Comparison of Chemical Freeze-Out Criteria in Heavy-Ion Collisions
- 200 A GeV Au+Au collisions serve a nearly perfect quark-gluon liquid
- ZPC 1.0.1: a parton cascade for ultrarelativistic heavy ion collisions
- Nearly Perfect Fluidity: From Cold Atomic Gases to Hot Quark Gluon Plasmas
- Physics of Strongly coupled Quark-Gluon Plasma
- Hydrodynamic Models for Heavy Ion Collisions
- Signatures of Quark-Gluon-Plasma formation in high energy heavy-ion collisions: A critical review
- Rotating quark-gluon plasma in relativistic heavy ion collisions
- Vorticity in Heavy-Ion Collisions
- A study of vorticity formation in high energy nuclear collisions
- Global polarization in heavy-ion collisions from a transport model
- Inclusive charged hadron elliptic flow in Au + Au collisions at = 7.7 - 39 GeV
- Estimation of the shear viscosity at finite net-baryon density from A+A collision data at GeV
- Extracting the QGP viscosity from RHIC data -- a status report from viscous hydrodynamics
- Thermal vorticity and spin polarization in heavy-ion collisions
- Flow Vorticity in Peripheral High Energy Heavy Ion Collisions
- Pb-Pb collisions at TeV in a multiphase transport model
- Interplay of shear and bulk viscosity in generating flow in heavy-ion collisions
- Bulk viscosity in quasi particle models
- Evolution of transverse flow and effective temperatures in the parton phase from a multi-phase transport model
- Transport coefficients near chiral phase transition
- Fluid Dynamics and Viscosity in Strongly Correlated Fluids
- Hydrodynamics at RHIC -- how well does it work, where and how does it break down?
- Bulk and shear viscosities of hot and dense hadron gas
- Bulk viscosity and the phase transition of the linear sigma model
- The Fluid Nature of Quark-Gluon Plasma
- Anomalous transport model study of chiral magnetic effects in heavy ion collisions
- Beam energy dependence of Elliptic and Triangular flow with the AMPT model
- Chemical freeze-out in relativistic heavy-ion collisions
- Probing vorticity in heavy ion collision with dilepton production