A5010845944- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Nuclear physics research studies
- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Black Holes and Theoretical Physics
- Physics of Superconductivity and Magnetism
- Semiconductor Quantum Structures and Devices
- Advanced Mathematical Identities
- Algebraic structures and combinatorial models
- Advanced Algebra and Geometry
- Advanced Chemical Physics Studies
Hunan Normal University
2015-2022
Ministry of Education of the People's Republic of China
2018-2022
Changsha Normal University
2021
The Synergetic Innovation Center for Advanced Materials
2020
Chinese Academy of Sciences
2013-2014
Institute of High Energy Physics
2013-2014
University of Kentucky
2014
University at Buffalo, State University of New York
1993
Abstract Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons well nuclei. As a future high energy nuclear physics project, Electron-ion collider in China (EicC) has been proposed. It will be constructed based on upgraded heavy-ion accelerator, High Intensity Accelerator Facility (HIAF) which currently under construction, together with new electron ring. The proposed provide highly polarized electrons (with polarization ∼80%) and...
The charmonium spectrum is calculated with two nonrelativistic quark models, the linear potential model, and screened model. Using obtained wave functions, we evaluate electromagnetic transitions of states up to $4S$ multiplet. higher multipole contributions are included by a expansion interactions. Our results in reasonable agreement measurements. As conventional states, radiative decay properties newly observed charmoniumlike such as $X(3823)$, $X(3872)$, $X(4140/4274)$, discussed....
The form factors in the radiative decay of $J/\psi$ to a scalar glueball are studied within quenched lattice QCD on anisotropic lattices. continuum extrapolation is carried out by using two different spacings. With results these factors, partial width radiatively decaying into pure gauge predicted be 0.35(8) keV, which corresponds branching ratio 3.8(9)x10^{-3}. By comparing with experiments, indicate that f_0(1710) has larger overlap than other related mesons.
Stimulated by the exciting progress in observation of new bottomonium states, we study spectrum. To calculate mass spectrum, adopt a nonrelativistic screened potential model. The radial Schr\"odinger equation is solved with three-point difference central method, where spin-dependent potentials are dealt nonperturbatively. With this treatment, corrections to wave functions can be included successfully. Furthermore, electromagnetic transitions $nS$ ($n\ensuremath{\le}4$), $nP$...
In applying large-momentum effective theory, renormalization of the Euclidean correlators in lattice regularization is a challenge due to linear divergences self-energy Wilson lines. Based on QCD matrix elements quasi-PDF operator at spacing $a$= 0.03 fm $\sim$ 0.12 with clover and overlap valence quarks staggered domain-wall sea, we design strategy disentangle divergent factors from finite physics elements, which can be matched continuum scheme short distance such as dimensional minimal...
Using the newly measured masses of $B_c(1S)$ and $B_c(2S)$ from CMS Collaboration $1S$ hyperfine splitting determined lattice QCD as constrains, we calculate $B_c$ mass spectrum up to $6S$ multiplet with a nonrelativistic linear potential model. Furthermore, using wave functions this model radiative transitions between states within constituent quark For higher lying above $DB$ threshold, also evaluate Okubo-Zweig-Iizuka (OZI) allowed two-body strong decays $^{3}P_{0}$ Our study indicates...
The open-charm strong decays of higher charmonium states up to the mass $6P$ multiplet are systematically studied in $^3P_0$ model. wave functions initial calculated linear potential (LP) and screened (SP) quark decay widths for most well-established above thresholds can be reasonably described. By comparing our model calculations with experimental observations we also discuss nature some newly observed charmonium-like states. It is found that (i) $\psi(4415)$ may favor $\psi(4S)$ or...
Abstract In this work we calculate the mass spectrum of strangeonium up to multiplet within a nonrelativistic linear potential quark model. Furthermore, using obtained wave functions, also evaluate strong decays states with Based on our successful explanations well established , and further discuss possible assignments strangeonium-like from experiments by combining theoretical results observations. It is found that some resonances, such as listed Particle Data Group, newly observed BESIII,...
Abstract We present the first calculation of connected scalar matrix element
and momentum fraction charm quark within the$\frac{3}{2}^{+}$
and $\frac{3}{2}^{-}$triply charmed baryons on lattice QCD. 
The results are based overlap valence fermions two ensembles $N_f=2+1$ domain wall fermion configurations with spacings. The corresponding sea pion masses $300$ MeV and $278$ MeV.
The separated
contributions to triply baryon mass derived...
The present utilization of photocatalysts in energy conversion falls to meet the increasing demands for enhanced H2 evolution efficiency and optimal solar utilization, due rapid carrier recombination at...
We aim to explore the production rate of pseudoscalar glueball in $J/\psi$ radiative decay by lattice QCD quenched approximation. The calculation is performed on three anisotropic lattices with spatial spacing ranging from 0.222(2) fm 0.110(1) fm. As a calibration some systematical uncertainties, we first extract $M1$ form factor $\hat{V}(0)$ process $J/\psi\to\gamma\eta_{c}$ and get result $\hat{V}(0)=1.933(41)$ continuum limit, which gives partial width...
Properties of ${2}^{\ensuremath{-}+}$ charmonium ${\ensuremath{\eta}}_{c2}$ are investigated in quenched lattice QCD. The mass is determined to be 3.80(3) GeV, which close the $D$-wave $\ensuremath{\psi}(3770)$ and agreement with quark model predictions. transition width ${\ensuremath{\eta}}_{c2}\ensuremath{\rightarrow}\ensuremath{\gamma}J/\ensuremath{\psi}$ also obtained a value $\ensuremath{\Gamma}=3.8(9)\text{ }\text{ }\mathrm{keV}$. Since possible assignment $X(3872)$ has not been ruled...
We carry out the first lattice QCD derivation of mixing energy and angle pseudoscalar charmonium glueball on two gauge ensembles with $N_f=2$ degenerate dynamical charm quarks. The is determined to be $49(6)$ MeV near physical ensemble, which seems insensitive quark mass. By assumption that $X(2370)$ predominantly a glueball, approximately $4.6(6)^\circ$, results in $+3.9(9)$ mass shift ground state charmonium. In mean time, can raise total width by 7.2(8) MeV, explains some extent relative...
The radiative decay of J/ψ into a pure gauge tensor glueball is studied in the quenched lattice QCD formalism. With two anisotropic lattices, multipole amplitudes E1(0), M2(0), and E3(0) are obtained to be 0.114(12)(6) GeV, -0.011(5)(1) 0.023(8)(1) respectively. first error comes from statistics, Q2 interpolation, continuum extrapolation, while second due uncertainty scale parameter r0(-1)=410(20) MeV. Thus, partial width Γ(J/ψ→γG(2++)) estimated 1.01(22)(10) keV, which corresponds large...
Abstract Inspired by the new resonance Y (10750), we calculate masses and two-body OZI-allowed strong decays of higher vector bottomonium sates within both screened linear potential models. We discuss possibilities $$\Upsilon (10860)$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>Υ</mml:mi><mml:mo>(</mml:mo><mml:mn>10860</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:math> (10750) as mixed states via $$S-D$$...
Stimulated by the newly discovered $\Omega(2012)$ resonance at Belle II, in this work we have studied OZI allowed strong decays of low-lying $1P$- and $1D$-wave $\Omega$ baryons within $^3P_0$ model. It is found that most likely to be a $1P$-wave state with $J^P=3/2^-$. We also find $\Omega(2250)$ could assigned as $J^P=5/2^+$. The other missing may large potentials observed their main decay channels.
The lowest-lying glueballs are investigated in lattice QCD using Nf = 2 clover Wilson fermions on anisotropic lattices. We simulate at two different and relatively heavy quark masses, corresponding to physical pion masses of mπ ∼ 938 MeV 650 MeV. mass dependence the glueball has not been present study. Only gluonic operators built from loops utilized calculating correlation functions. In tensor channel, we obtain ground state be 2.363(39) GeV 2.384(67) MeV, respectively. pseudoscalar when...
We propose a novel type of interpolating field operator, which manifests the hybrid-like configuration that charm quark-antiquark pair recoils against gluonic degrees freedom. A heavy vector charmonium-like state with mass 4.33(2),GeV is disentangled from conventional charmonium states in quenched approximation. This has affinity for operators but couples less to relevant quark bilinear operator. also try extract its leptonic decay constant and give tentative upper limit it than one tenth...
Scalar [1] and tensor [2] glueballs created in J/ψ radiative decays are studied quenched lattice QCD.Using two anisotropic lattices to approach the continuum limit, we compute relevant form factors responsible for decay rates → γG 0 ++ 2 .Comparing with existing experimental data, it is argued that f (1710) a favorable candidate scalar glueball.The rate found be quite substantial.A comprehensive search channel on BESIII therefore suggested.
The Bethe-Salpeter wave functions of $SU(3)$ pure gauge glueballs are revisited in this study. ground and the first excited states scalar tensor identified unambiguously through variational method. We calculate Coulomb use two lattice spacings to check discretization artifacts. For states, radial approximately Gaussian, size glueball is roughly twice as large that glueball. nodes clearly observed for both glueballs, such they can be interpreted excitations. These observations may shed light...
We study the electromagnetic (EM) transitions of $nS$, $nP$ ($n\leq 3$), and $nD$ 2$) charmonium states with a constituent quark model. obtain reasonable description EM well-established $J/\psi$, $\psi(2S)$, $\chi_{cJ}(1P)$, $h_c(1P)$ $\psi(3770)$. find that M2 give notable corrections to some E1 dominant processes by interfering transitions. Our predictions decay properties for higher are also presented compared other model predictions. In particular, we discuss $"XYZ"$ states, such as...
In the generic domain wall fermion formulation of chiral fermions on lattice, zero modes four-dimensional Wilson operator with negative mass parameter $\ensuremath{-}{M}_{5}$ introduce unphysical massive propagating in spacetime. free case, pole this kind is given by $\stackrel{\texttildelow{}}{E}=\mathrm{ln}(1\ensuremath{-}{M}_{5})$, which acquires an imaginary part, $i\ensuremath{\pi}$, when ${M}_{5}>1$ and results oscillatory behavior propagator time. The existence presence gauge...
We perform the first lattice QCD study on radiative decay of scalar glueball to vector meson $\phi$ in quenched approximation. The calculations are carried out three gauge ensembles with different spaicings, which enable us do continuum extrapolation. revisit $J/\psi$ into $G$ and obtain partial width $\Gamma(J/\psi \to \gamma G)=0.449(44)~\text{keV}$ branching fraction $\text{Br}(J/\psi G) = 4.8(5)\times 10^{-3}$, agreement previous results. then extend similar calculation process $G\to...