A5015842184- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Cold Atom Physics and Bose-Einstein Condensates
- Quantum, superfluid, helium dynamics
- Physics of Superconductivity and Magnetism
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Pulsars and Gravitational Waves Research
- Metal-Organic Frameworks: Synthesis and Applications
- Atomic and Subatomic Physics Research
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Polyoxometalates: Synthesis and Applications
- Black Holes and Theoretical Physics
- Crystallography and molecular interactions
- Nuclear physics research studies
- Cosmology and Gravitation Theories
- High-pressure geophysics and materials
- Theoretical and Computational Physics
- Nuclear reactor physics and engineering
- Superconducting Materials and Applications
- Chemical Synthesis and Reactions
- Scientific Research and Discoveries
- Stochastic processes and statistical mechanics
Tsinghua University
2015-2025
Jinzhou Medical University
2021-2022
Liaoning University of Technology
2022
First Affiliated Hospital of Fujian Medical University
2020
Fujian Medical University
2020
Collaborative Innovation Center of Quantum Matter
2013-2019
Dalian University of Technology
2012-2015
Dalian University
2012-2015
Henan Normal University
2009-2011
Shaanxi Normal University
2010
We investigate pion superfluidity and its effect on meson properties equation of state at finite temperature isospin baryon densities in the frame standard flavor SU(2) NJL model. In mean field approximation to quarks random phase mesons, critical chemical potential for is exactly mass vacuum, corresponding symmetry spontaneous breaking, there a Goldstone mode which linear combination normal sigma charged modes. calculate numerically gap equations chiral condensates, diagrams, spectra,...
We study $J/\ensuremath{\psi}$ production at RHIC and LHC energies with both initial reached the BNL Relativistic Heavy Ion Collider (RHIC) CERN Large Hadron (LHC) regeneration. solve coupled set of transport equations for distribution in phase space hydrodynamic equation evolution quark-gluon plasma. At RHIC, continuous regeneration is crucial momentum while elliptic flow still dominated by production. energy, almost all initially created $J/\ensuremath{\psi}s$ are dissociated medium...
We investigate with a transport approach the cold and hot nuclear matter effects on charmonium transverse momentum distributions in relativistic heavy ion collisions. The newly defined modification factor $r_{AA}=\langle p_{T}^2\rangle_{AA}/\langle p_{T}^2\rangle_{pp}$ elliptic flow $v_2$ for $J/\psi$ are sensitive to nature of medium thermalization quarks. From SPS through RHIC LHC colliding energies, we observe dramatic changes centrality dependence $r_{AA}$. find that at energy, finally...
Recently there has been significant interest in understanding the macroscopic quantum transport a many-body system of chiral fermions. A natural framework for describing such which is generally out equilibrium, equation its phase space distribution function. In this paper, we obtain complete solution covariant massless fermions, by starting from general Wigner function formalism and carrying consistent semiclassical expansion up to $\hat{\mathbf{O}}(\hbar)$ order. particular, clarify certain...
Open and hidden heavy-flavor physics in high-energy nuclear collisions are entering a new exciting stage towards reaching clearer understanding of the experimental results with possibility to link them directly advancement lattice Quantum Chromo-Dynamics (QCD). Recent from experiments theoretical developments regarding open dynamics have been debated at Lorentz Workshop Tomography Quark-Gluon Plasma Heavy Quarks, which was held October 2016 Leiden, The Netherlands. In this contribution, we...
We study fermion mass correction to chiral kinetic equations in electromagnetic fields. Different from the limit where number density is only independent distribution, and spin densities are coupled each other for massive systems. To first order $\hbar$, we derived quantum classical on-shell condition Boltzmann-type transport equations. linear mass, does not change structure of behaves like additional collision terms. While exists already at level general fields, it a magnetic effect.
The electromagnetic response of hot QCD matter to decaying external magnetic fields is investigated. We examine the validity Ohm's law and find that induced electric current increases from zero relaxes towards value law. relaxation time larger than lifetime field for in relativistic heavy-ion collisions. lower-than-expected significantly suppresses makes incomplete. demonstrate incomplete by calculations employing parton transport model combined with solution Maxwell's equations. Our results...
Bottomonium states are key probes for experimental studies of the quark-gluon plasma (QGP) created in high-energy nuclear collisions. Theoretical models bottomonium productions collisions rely on in-medium interactions between bottom and antibottom quarks. The latter can be characterized by temperature ($T$) dependent potential, with real ($V_R(T,r)$) imaginary ($V_I(T,r)$) parts, as a function spatial separation ($r$). Recently, masses thermal widths up to $3S$ $2P$ QGP were calculated...
The BEC-BCS (Bose-Einstein condensation--Bardeen-Cooper-Shriffer) crossover in QCD at finite baryon and isospin chemical potentials is investigated the Nambu-Jona-Lasinio model. diquark condensation two color pion real would undergo a when corresponding potential increases. We determined as well BEC BCS regions. not triggered by increasing strength of attractive interaction among quarks but driven changing charge density. chiral symmetry restoration temperature density plays an important...
It is important to understand the strong external magnetic field generated at very beginning of heavy ion collisions. We study effect on anisotropic charmonium formation in Pb + collisions LHC energy. The time dependent Schrödinger equation employed describe motion cc¯ pairs. compare our model prediction non-collective parameter v2 J/ψ with CMS data high transverse momentum.
We study the properties of fully-heavy tetraquarks at finite temperature and their production in high-energy nuclear collisions. obtain masses wave functions exotic hadron states $cc\overline{c}\overline{c}$ $bb\overline{b}\overline{b}$ by solving four-body Schr\"odinger equation vacuum strongly interacting matter. In vacuum, are above corresponding meson-meson mass threshold, newly observed state $X(6900)$ might be a with quantum number ${J}^{PC}={0}^{++}$ or ${1}^{+\ensuremath{-}}$. hot...
Four different phases of the two-flavor quark system, i.e., normal matter and color superconducting with without charge neutrality condition, are investigated in framework SU(2) Nambu--Jona-Lasinio model. It is found that phase has lowest thermodynamic potential, neutral systems have higher potentials. However, BCS pairing always lowers system's for both charged systems, lower Compared gap ${\ensuremath{\Delta}}_{0}$ neutrality, $\ensuremath{\Delta}$ been largely reduced. When potential...
Upsilon production in heavy ion collisions at RHIC energy is investigated. While the transverse momentum spectra of ground state Upsilon(1s) are controlled by initial Cronin effect, excited $b\bar b$ states characterized competition between cold and hot nuclear matter effects sensitive to dissociation temperatures determined quark potential. We emphasize that it necessary measure order extract early stage information high RHIC.
QCD at finite isospin chemical potential ${\ensuremath{\mu}}_{\mathrm{I}}$ possesses a positively definite fermion determinant, and the lattice simulation can be successfully performed. While two-flavor effective models may sufficient to describe phenomenon of pion condensation, it is interesting study roles strangeness degree freedom ${\mathrm{U}}_{\mathrm{A}}(1)$ anomaly. In this paper, we present systematic three-flavor Nambu--Jona-Lasinio model with Kobayashi-Maskawa-'t Hooft (KMT) term...
We study neutral and charged meson properties in the magnetic field. Taking bosonization method a two-flavor Nambu--Jona-Lasinio model, we derive effective Lagrangian density with minimal coupling to field, by employing derivative expansion for both fields Schwinger phases. extract from curvature, pole screening masses. As only Goldstone mode, pion controls thermodynamics of system propagates long range quark interaction. The field breaks down space symmetry, interaction region changes...
We investigated two pion condensed phases in the frame of flavor Nambu-Jona-Lasinio model at finite baryon density: homogeneous and isotropic Sarma phase inhomogeneous anisotropic Larkin-Ovchinnikov-Fudde-Ferrell (LOFF) phase. At small isospin chemical potential ${\ensuremath{\mu}}_{I}$, state is free from instability magnetic due to strong coupling large enough effective quark mass. while can be cured via fixing density ${n}_{B}$ nonzero, its implies that LOFF more favored than state. In...
A general analysis for the competition between breached pairing (BP) and LOFF mechanisms in asymmetric fermion superfluids is presented frame of a four interaction model. Two physical conditions which can induce mismatched Fermi surfaces are considered: (1) fixed chemical potential asymmetry $δμ$ (2) number $α$. In case (1), BP state ruled out because Sarma instability thermodynamically stable narrow window $δμ$. (2), while be avoided both states survive provided $α$ less than corresponding...
The effects of chiral imbalance and external magnetic field on pion superfluidity color superconductivity are investigated in extended Nambu--Jona-Lasinio models. We take Schwinger approach to treat the interaction between charged condensate at finite isospin density include simultaneously baryon density. For superfluidity, lead catalysis inverse effects, respectively. superconductivity, enhances critical density, results a de Haas--van Alphan oscillation phase transition line.
We study the thermalization of gluons far from thermal equilibrium in relativistic kinetic theory. The initial distribution is assumed to resemble that early stage ultrarelativistic heavy ion collisions. Only elastic scatterings static, nonexpanding gluonic matter are considered. At first we show occurrence condensation limit vanishing particle mass requires a general constraint for scattering matrix element. Then with Bose-Einstein demonstrated transport calculation. see continuously...