A5074933533- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Gas Dynamics and Kinetic Theory
- Fluid Dynamics and Turbulent Flows
- Cold Atom Physics and Bose-Einstein Condensates
- Black Holes and Theoretical Physics
- Pulsars and Gravitational Waves Research
- Theoretical and Computational Physics
- Nuclear reactor physics and engineering
- Atomic and Molecular Physics
- Quantum, superfluid, helium dynamics
- Nuclear physics research studies
- Stochastic processes and statistical mechanics
- Superconducting Materials and Applications
- Atomic and Subatomic Physics Research
- Computational Fluid Dynamics and Aerodynamics
- High-pressure geophysics and materials
- Statistical Mechanics and Entropy
- Advanced Thermodynamics and Statistical Mechanics
- Lattice Boltzmann Simulation Studies
- Quantum chaos and dynamical systems
- Ionosphere and magnetosphere dynamics
- Optical properties and cooling technologies in crystalline materials
The Ohio State University
2015-2024
Seascape Consultants (United Kingdom)
2023
University of North Carolina at Chapel Hill
2022
Goethe University Frankfurt
1978-2021
State Library of Ohio
2007-2021
European Organization for Nuclear Research
1989-2019
GSI Helmholtz Centre for Heavy Ion Research
2018-2019
Duke University
1996-2016
University of Regensburg
1993-2003
Central China Normal University
2002-2003
We develop a complete and consistent description for the hadron spectra from heavy ion collisions in terms of few collective variables, particular temperature, longitudinal, transverse flow. To achieve meaningful comparison with presently available data, we also include resonance decays into our picture. disentangle influences flow ${\mathit{m}}_{\mathit{T}}$ spectra, analyze detail shape spectra.
Collective flow, its anisotropies and event-to-event fluctuations in relativistic heavy-ion collisions, the extraction of specific shear viscosity quark-gluon plasma (QGP) from collective flow data collected collision experiments at RHIC LHC are reviewed. Specific emphasis is placed on similarities between Big Bang our universe Little Bangs created collisions.
We explore the effects of shear viscosity on hydrodynamic evolution and final hadron spectra Cu + collisions at ultrarelativistic collision energies, using newly developed (2 1)-dimensional viscous code VISH2+1. Based causal Israel-Stewart formalism, this describes transverse longitudinally boost-invariant systems without azimuthal symmetry around beam direction. Shear is shown to decelerate longitudinal accelerate expansion. For fixed initial conditions, leads a longer quark-gluon plasma...
We use (3+1)-dimensional hydrodynamics with exact longitudinal boost-invariance to study the influence of collision centrality and initial energy density on transverse flow pattern angular distributions particles emitted near midrapidity in ultrarelativistic heavy-ion collisions. concentrate radial elliptic coefficient v2 as functions impact parameter energy. demonstrate that finally observed is established earlier than thus probes equation state at higher densities. point out a phase...
We quantitatively estimate properties of the quark-gluon plasma created in ultra-relativistic heavy-ion collisions utilizing Bayesian statistics and a multi-parameter model-to-data comparison. The study is performed using recently developed parametric initial condition model, TRENTO, which interpolates among general class particle production schemes, modern hybrid model couples viscous hydrodynamics to hadronic cascade. calibrate multiplicity, transverse momentum, flow data report...
A new robust method to extract the specific shear viscosity (η/s)(QGP) of a quark-gluon plasma (QGP) at temperatures T(c) < T ≲ 2T(c) from centrality dependence eccentricity-scaled elliptic flow v2/ε measured in ultrarelativistic heavy-ion collisions is presented. Coupling viscous fluid dynamics for QGP with microscopic transport model hadronic freeze-out we find 200 GeV Au + that universal function multiplicity density (1/S)(dN(ch)/dy) depends only on but not used computing initial fireball...
Within five different approaches to parton propagation and energy loss in dense matter, a phenomenological study of experimental data on suppression large-${p}_{T}$ single inclusive hadrons heavy-ion collisions at both the BNL Relativistic Heavy Ion Collider (RHIC) CERN Large Hadron (LHC) was carried out. The evolution bulk medium used for given by 2 + 1 dimensional or 3 hydrodynamic models which are also constrained hadron spectra. Values jet transport parameter $\stackrel{\ifmmode...
This writeup is a compilation of the predictions for forthcoming Heavy Ion Program at Large Hadron Collider, as presented CERN Theory Institute 'Heavy Collisions LHC - Last Call Predictions', held from May 14th to June 10th 2007.
Heavy-ion collisions create deformed quark-gluon plasma (QGP) fireballs which explode anisotropically. The viscosity of the fireball matter determines its ability to convert initial spatial deformation into momentum anisotropies that can be measured in final hadron spectra. A quantitatively precise empirical extraction QGP thus requires a good understanding deformation. This fluctuates from event event, and so does finally observed anisotropy. We present harmonic decomposition fluctuations...
A comprehensive viscous hydrodynamic fit of spectra and elliptic flow for charged hadrons identified pions protons from Au+Au collisions all centralities measured at the Relativistic Heavy Ion Collider is performed used as basis predicting analogous observables Pb+Pb Large Hadron sqrt(s)=2.76 5.5 TeV. Comparison with recent measurements by ALICE experiment shows that model slightly over-predicts data if same (constant) specific shear viscosity eta/s assumed both collision energies. In spite...
We study the properties of strongly-coupled quark-gluon plasma with a multistage model heavy ion collisions that combines T$_\mathrm{R}$ENTo initial condition ansatz, free-streaming, viscous relativistic hydrodynamics, and hadronic transport. A model-to-data comparison Bayesian inference is performed, revisiting assumptions made in previous studies. The role parameter priors studied light their importance towards interpretation results. emphasize use closure tests to perform extensive...
Hydrodynamics has been successful in providing a good description of the bulk dynamics ultra-relativistic heavy ion collisions. In this brief review, we provide basics theory viscous hydrodynamics. Topics covered include derivation 2nd order hydrodynamics from linear response and kinetic theory, anisotropic hydrodynamics, numerical implementation relativistic
Using combined data from the Relativistic Heavy Ion and Large Hadron Colliders, we constrain shear bulk viscosities of quark-gluon plasma (QGP) at temperatures ∼150–350 MeV. We use Bayesian inference to translate experimental theoretical uncertainties into probabilistic constraints for viscosities. With model averaging propagate an estimate uncertainty generated by transition hydrodynamics hadron transport in plasma's final evolution stage, providing most reliable phenomenological date on...
The size of the average fluctuations net baryon number and electric charge in a finite volume hadronic matter differs widely between confined deconfined phases. These differences may be exploited as indicators formation quark-gluon plasma relativistic heavy-ion collisions, because created initial state survive until freeze-out due to rapid expansion hot fireball.
In this paper, we investigate various ways of defining the initial source eccentricity using Monte Carlo Glauber (MCG) approach. particular, examine participant eccentricity, which quantifies shape by major axes ellipse formed interaction points participating nucleons. We show that reasonable variation density parameters in calculation, as well variations how matter production is modeled, do not significantly modify already established behavior a function collision centrality. Focusing on...