A5045773048- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Pulsars and Gravitational Waves Research
- Cosmology and Gravitation Theories
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Particle Detector Development and Performance
- Fluid Dynamics and Turbulent Flows
- Nuclear reactor physics and engineering
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Cold Atom Physics and Bose-Einstein Condensates
- Gamma-ray bursts and supernovae
- Superconducting Materials and Applications
- Aerodynamics and Acoustics in Jet Flows
- Stochastic processes and statistical mechanics
- Magnetic confinement fusion research
- Gas Dynamics and Kinetic Theory
- Advanced NMR Techniques and Applications
- Medical Imaging Techniques and Applications
- Solar and Space Plasma Dynamics
Wayne State University
2019-2025
Brookhaven National Laboratory
2016-2025
RIKEN BNL Research Center
2019-2025
Jilin University
2020-2025
Fudan University
2021-2025
Jiangsu Provincial Key Laboratory of Network and Information Security
2025
Putian University
2025
Taishan Medical University
2025
Shandong First Medical University
2025
Shanghai Center for Brain Science and Brain-Inspired Technology
2025
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...
The cross section for ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\ensuremath{\psi}(2S)$ between threshold and $\sqrt{s}=5.5\text{ }\text{ }\mathrm{GeV}$ is measured using $673\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data on off the $\ensuremath{\Upsilon}(4S)$ resonance collected with Belle detector at KEKB. Two resonant structures are observed in...
The cross section for ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}J/\ensuremath{\psi}$ between 3.8 and $5.5\text{ }\text{ }\mathrm{GeV}/{c}^{2}$ is measured using a $548\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample collected on or near the $\ensuremath{\Upsilon}(4S)$ resonance with Belle detector at KEKB. A peak $4.25\text{ }\mathrm{GeV}/{c}^{2}$, corresponding to so called $Y(4260)$, observed. In addition, there another...
We investigate the consequences of a nonzero bulk viscosity coefficient on transverse momentum spectra, azimuthal anisotropy, and multiplicity charged hadrons produced in heavy ion collisions at LHC energies. The agreement between realistic 3D hybrid simulation experimentally measured data considerably improves with addition for strongly interacting matter. This paves way an eventual quantitative determination several QCD transport coefficients from experimental hadron-nucleus collision programs.
In this work it is shown that the use of a hydrodynamical model heavy-ion collisions which incorporates recent developments, together with updated photon emission rates, greatly improves agreement both ALICE and PHENIX measurements direct photons, supporting idea thermal photons are dominant source momentum anisotropy. The event-by-event uses impact parameter dependent Glasma (IP-Glasma) initial states includes, for first time, shear bulk viscosities, along second-order couplings between two...
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...
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...
Abstract High-energy nuclear collisions provide a unique site for the synthesis of both nuclei and antinuclei at temperatures k T ≈ 100 − 150 MeV. In these little bangs transient collisions, quark-gluon plasma (QGP) nearly vanishing viscosity is created, which believed to have existed in early universe within first few microseconds after Big Bang. Analyses identified particles produced based on statistical hadronization model QGP suggested that light (anti)nuclei are from as other hadrons...
Analytical expressions for the saturation density of asymmetric nuclear matter as well its binding energy and incompressibility at are given up to fourth order in isospin asymmetry $\ensuremath{\delta}=({\ensuremath{\rho}}_{n}\ensuremath{-}{\ensuremath{\rho}}_{p})/\ensuremath{\rho}$ using 11 characteristic parameters defined by derivatives per nucleon symmetric matter, symmetry ${E}_{\mathrm{sym}} (\ensuremath{\rho})$, fourth-order ${E}_{\mathrm{sym},4}(\ensuremath{\rho})$ normal...
We present a fully three-dimensional model providing initial conditions for energy and net-baryon density distributions in heavy-ion collisions at arbitrary collision energy. The includes the dynamical deceleration of participating nucleons or valence quarks, depending on implementation. duration continues until string spanned between colliding participants is assumed to thermalize, which either after fixed proper time, fluctuating time sampled final rapidities. Energy deposited space along...
A hybrid (hydrodynamics + hadronic transport) theoretical framework is assembled to model the bulk dynamics of relativistic heavy-ion collisions at energies accessible in Beam Energy Scan (BES) program Relativistic Heavy-Ion Collider (RHIC) and NA61/SHINE experiment CERN. The system's energy-momentum tensor net baryon current are evolved according hydrodynamics with finite shear viscosity non-zero diffusion. Our hydrodynamic description matched a transport dilute region. With this fully...
Using the ($2+1$)-dimensional viscous hydrodynamic code vish2$+$1 [H. Song and U. Heinz, Phys. Lett. B 658, 279 (2008); H. Rev. C 77, 064901 Song, Ph. D. thesis, The Ohio State University, 2009], we present systematic studies of dependence pion proton transverse-momentum spectra their elliptic flow in $200A$ GeV Au$+$Au collisions on parameters model (thermalization time, initial entropy density distribution, decoupling temperature, equation state, specific shear viscosity...
Results for particle production in s=5.02TeV p + Pb collisions at the Large Hadron Collider within a combined classical Yang–Mills and relativistic viscous hydrodynamic calculation are presented. We emphasize importance of sub-nucleon scale fluctuations proton projectile to describe experimentally observed azimuthal harmonic coefficients vn, demonstrating their sensitivity shape. stress that shape its not free parameters our calculations. Instead, they have been constrained using...
We report the results of a search for charmonium-like state produced in process gamma --> omega J/psi 3.9-4.2 GeV/c^2 mass region. observe significant enhancement, which is well-described by resonant shape with M = (3915 +/- 3 2) MeV/c^2 and total width Gamma (17 10 3) MeV. This enhancement may be related to one or more three states so far reported 3.90-3.95
Pea and rice proteins are promising to substitute allergenic proteins, increasingly, play important roles in the food industry because of their hypoallergenic characteristics nutritional value. However, manufacturers generally provide limited functionality information on these proteins. Therefore, this study comprehensively compared functional properties wheat, soybean, rice, pea for industrial applications illustrated correlation among various functionalities. Results showed that protein...
Photons are a penetrating probe of the hot medium formed in heavy-ion collisions, but they emitted from all collision stages. At photon energies below 2-3 GeV, measured spectra approximately exponential and can be characterized by their inverse logarithmic slope, often called "effective temperature" $T_\mathrm{eff}$. Modelling evolution radiating hydrodynamically, we analyze factors controlling value $T_\mathrm{eff}$ how it is related to evolving true temperature $T$ fireball. We find that...
The process $\gamma \gamma \to \phi \jpsi$ is measured for $\phi masses between threshold and 5 GeV/${\it c}^2$, using a data sample of 825 fb$^{-1}$ collected with the Belle detector. A narrow peak $8.8^{+4.2}_{-3.2}$ events, significance 3.2 standard deviations including systematic uncertainty, observed. mass natural width structure (named X(4350)) are to be $(4350.6^{+4.6}_{-5.1}(\rm{stat})\pm 0.7(\rm{syst})) \hbox{MeV}/{\it c}^2$ $(13^{+18}_{-9}(\rm{stat})\pm 4(\rm{syst})) \hbox{MeV}$,...
Event-by-event fluctuations in the initial density distributions of fireballs created relativistic heavy-ion collisions lead to event-by-event final anisotropic flow angles, and inhomogeneities state cause these angles vary with transverse momentum emitted particles. It is shown that effects characteristically different dependencies for coefficients extracted from experimental methods. These differences can be used experimentally constrain angle which, turn, are sensitive shear viscosity...
It is shown that the recently developed hybrid code VISHNU, which couples a relativistic viscous fluid dynamical description of quark-gluon plasma (QGP) with microscopic Boltzmann cascade for late hadronic rescattering stage, yields an excellent charged and identified hadron spectra elliptic flow measured in 200 $A$ GeV $\text{Au}+\text{Au}$ collisions at Relativistic Heavy-Ion Collider (RHIC). Using initial conditions incorporate event-by-event fluctuations shape orientation collision...