A5100648865- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Fiber-reinforced polymer composites
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Physics of Superconductivity and Magnetism
- Nuclear physics research studies
- Tribology and Wear Analysis
- Black Holes and Theoretical Physics
- Extraction and Separation Processes
- Superconducting Materials and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Natural Fiber Reinforced Composites
- Membrane Separation Technologies
- Metallurgy and Material Forming
- Supercapacitor Materials and Fabrication
- Synthesis and properties of polymers
- Polymer Nanocomposites and Properties
- Algorithms and Data Compression
- Flame retardant materials and properties
- Quantum Mechanics and Non-Hermitian Physics
- High Temperature Alloys and Creep
- Membrane-based Ion Separation Techniques
- Recycling and Waste Management Techniques
Peking University
2022-2024
Institute of High Energy Physics
2015-2024
University of Chinese Academy of Sciences
2017-2024
Chinese Academy of Sciences
2014-2024
Yantai University
2023-2024
Hangzhou Dianzi University
2024
Hebei Agricultural University
2024
Central South University
2023-2024
Hunan Institute of Engineering
2024
Shandong Normal University
2022-2024
The rare decays $B^0 \to K^{*0} μ^+ μ^-$ and $B_s ϕμ^+ are now being observed with enough precision to test Standard Model predictions. A full understanding of these requires accurate determinations the corresponding hadronic form factors. Here we present results lattice QCD calculations $B K^*$ ϕ$ factors; also determine factors relevant for tree-level K^* \ell ν$. We use full-QCD configurations including 2+1 flavors sea quarks using an improved staggered action, employ non-relativistic...
Exogenous microparticles including microplastics are novel pollutants that could persist in the environment with potential health effects, while crucial data on their exposure humans still lacking. To understand panorama of and distribution characteristics different kinds body fluids. A non-targeted microparticle internal landscape analysis was done thirteen human enclosed fluids covering eight systems. Totally 104 patients aged 24–96 years an average age 56 were included this study. After...
We calculate the differential branching fractions and angular distributions of rare decays ${B}^{0}\ensuremath{\rightarrow}{K}^{*0}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ ${B}_{s}^{0}\ensuremath{\rightarrow}\ensuremath{\phi}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$, using for first time form factors from unquenched lattice QCD. focus on kinematic region where ${K}^{*}$ or $\ensuremath{\phi}$ recoils softly; there, newly available are most precise nonlocal...
We report results on the proton mass decomposition and also related quark glue momentum fractions. The are based overlap valence fermions four ensembles of Nf=2+1 domain wall fermion configurations with three lattice spacings volumes, several pion masses including physical mass. With fully nonperturbative renormalization (and universal normalization both gluon), we find that energy field contribute 32(4)(4)% 36(5)(4)% respectively in MS¯ (modified minimal substraction) scheme at μ=2 GeV. A...
The S-wave DD⁎ scattering in the isospin I=0,1 channels is studied Nf=2 lattice QCD at mπ≈350 MeV. It observed that interaction repulsive I=1 channel when energy near threshold. In contrast, I=0 definitely attractive a wide range of energy. This consistent with assignment for Tcc+(3875). By analyzing components correlation functions, it turns out quark diagram responsible different properties interactions can be understood as charged ρ meson exchange effect. observation provides direct...
We present the first theoretical prediction of production rate $1^{-+}$ light hybrid meson $\eta_1$ in $J/\psi$ radiative decays. In $N_f=2$ lattice QCD formalism with pion mass $m_\pi\approx 350$ MeV, related electromagnetic multipole form factors are extracted from three-point functions that involve necessarily quark annihilation diagrams, which calculated through distillation method. The partial width $J/\psi\to \gamma \eta_1$ is determined to be $2.29(77)~\mathrm{eV}$ at...
We perform a lattice calculation on the radiative decay of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msubsup><a:mi>D</a:mi><a:mi>s</a:mi><a:mo>*</a:mo></a:msubsup></a:math> using (<c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:mn>2</c:mn><c:mo>+</c:mo><c:mn>1</c:mn></c:mrow></c:math>)-flavor Wilson-clover gauge ensembles generated by CLQCD collaboration. A method allowing us to calculate form factor with zero transfer momentum...
In this exploratory lattice study, low-energy scattering of the $(D\bar{D}^{*})^\pm$ meson system is analyzed using QCD with $N_f=2$ twisted mass fermion configurations three pion values. The calculation performed within single-channel L\"uscher's finite-size formalism. threshold parameters, namely length $a_0$ and effective range $r_0$, for $s$-wave in $J^P=1^+$ channel are extracted. For cases our interaction between two charmed mesons weakly repulsive. Our results therefore do not support...
We use overlap fermions as valence quarks to calculate meson masses in a wide quark mass range on the $2+1$-flavor domain-wall fermion gauge configurations generated by RBC and UKQCD Collaborations. The well-defined formalism clear dependence of observed from calculation facilitate direct derivation physical current through global fit lattice data, which incorporates $O({a}^{2})$ $O({m}_{c}^{4}{a}^{4})$ corrections, chiral extrapolation, interpolation. Using ${D}_{s}$, ${D}_{s}^{*}$...
Retrieval-Augmented Generation (RAG) has emerged as a pivotal innovation in natural language processing, enhancing generative models by incorporating external information retrieval. Evaluating RAG systems, however, poses distinct challenges due to their hybrid structure and reliance on dynamic knowledge sources. We consequently enhanced an extensive survey proposed analysis framework for benchmarks of RAGR (Retrieval, Generation, Additional Requirement), designed systematically analyze...
Cell cycle-dependent kinase 2 (CDK2) is located downstream of CDK4/6 in the cell cycle and regulates entry into S-phase by binding to Cyclin E hyper-phosphorylating Rb. Proto-oncogene murine double minute (MDM2) a key negative regulator p53, which highly expressed tumors plays an important role tumorigenesis progression. In this study, we identified dual inhibitor CDK2 MDM2, III-13, had good selectivity for inhibiting activity significantly reduced MDM2 expression. vitro results showed that...
In this paper, the topological entropy and measure-theoretic for nonautonomous dynamical systems are studied. Some properties of these entropies given relation between them is discussed. Moreover, bounds several particular systems, such as affine transformations on metrizable groups (especially torus) smooth maps Riemannian manifolds, obtained.
The large radiative production rate for pseudoscalar mesons in the J/ψ decay remains elusive. We present first lattice QCD calculation of partial width radiatively decaying into η_{(2)}, SU(2) flavor singlet meson, which confirms U_{A}(1) anomaly enhancement to coupling gluons with mesons. simulation is carried out using N_{f}=2 gauge configurations at pion mass m_{π}≈350 MeV. In particular, distillation method has been utilized calculate light quark loops. results are reported here...
Volatile organic compounds (VOCs) exposure has been found to be associated with neurological dysfunction, depression often being one of the classic symptoms disease, and indoor environments are more likely enriched concentrations VOCs. This cross-sectional study measured VOCs levels in whole blood, estimated level Patient Health Questionnaire adults from NHANES 2013–2018. We benzene (β = 0.40, 95%CI: 0.19, 0.61) ethylbenzene 0.22, 0.05, 0.39) were adjusted for covariates general linear...
We compute the condensate in QCD with two flavors of dynamical fermions using numerical simulation. The simulations use overlap fermions, and is extracted by fitting distribution low-lying eigenvalues Dirac operator sectors fixed topological charge to predictions Random Matrix Theory.
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...
On a lattice with 2+1-flavor dynamical domain-wall fermions at the physical pion mass, we calculate decay constants of $D_{s}^{(*)}$, $D^{(*)}$ and $\phi$. The size is $48^3\times96$, which corresponds to spatial extension $\sim5.5$ fm spacing $a\approx 0.114$ fm. For valence light, strange charm quarks, use overlap several mass points close their values. Our results point are $f_D=213(5)$ MeV, $f_{D_s}=249(7)$ $f_{D^*}=234(6)$ $f_{D_s^*}=274(7)$ $f_\phi=241(9)$ MeV. couplings $D^*$ $D_s^*$...