A5101484270- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Black Holes and Theoretical Physics
- Nuclear physics research studies
- Nuclear Physics and Applications
- Particle Accelerators and Free-Electron Lasers
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Maritime Transport Emissions and Efficiency
- Maritime Navigation and Safety
- Computational Physics and Python Applications
- Muon and positron interactions and applications
- X-ray Diffraction in Crystallography
- Fault Detection and Control Systems
- X-ray Spectroscopy and Fluorescence Analysis
- Anomaly Detection Techniques and Applications
- Advanced Electrical Measurement Techniques
- Advanced Frequency and Time Standards
- Radiation Effects in Electronics
- Advanced Semiconductor Detectors and Materials
Jiangsu University
2024-2025
Institute of High Energy Physics
2015-2024
Hunan University
2024
Ministry of Transport
2023-2024
Henan University
2023
Inner Mongolia University
2023
Chinese Academy of Sciences
2012-2023
University of Chinese Academy of Sciences
2020-2023
Liaoning University
2022
University of Utah
2004-2005
We study the process e+e−→(D∗¯D∗)±π∓ at a center-of-mass energy of 4.26 GeV using 827 pb−1 data sample obtained with BESIII detector Beijing Electron Positron Collider. Based on partial reconstruction technique, Born cross section is measured to be (137±9±15) pb. observe structure near (D∗¯D∗)± threshold in π∓ recoil mass spectrum, which we denote as Z±c(4025). The and width are (4026.3±2.6±3.7) MeV/c2 (24.8±5.6±7.7) MeV, respectively. Its production ratio...
We report a study of the processes e+e−→K+D−sD*0 and K+D*−sD0 based on e+e− annihilation samples collected with BESIII detector operating at BEPCII five center-of-mass energies ranging from 4.628 to 4.698 GeV total integrated luminosity 3.7 fb−1. An excess events over known contributions conventional charmed mesons is observed near D−sD*0 D*−sD0 mass thresholds in K+ recoil-mass spectrum for √s=4.681 GeV. The structure matches mass-dependent-width Breit-Wigner line shape, whose pole width...
We have measured the cosmic ray spectrum above 10(17.2) eV using two air-fluorescence detectors of High Resolution Fly's Eye observatory operating in monocular mode. describe detector, phototube, and atmospheric calibrations, as well analysis techniques for detectors. fit to a model consisting galactic extragalactic sources.
From December 2011 to May 2014, about 5 fb−1 of data were taken with the BESIII detector at center-of-mass energies between 3.810 GeV and 4.600 study charmonium-like states higher excited charmonium states. The time-integrated luminosity collected sample is measured a precision 1% by analyzing events produced large-angle Bhabha scattering process.
The Born cross section of the $e^{+}e^{-}~\rightarrow~\Lambda_{c}^{+} \bar{\Lambda}_{c}^{-}$ process is measured with unprecedented precision using data collected BESIII detector at $\sqrt{s}=4574.5$, $45580.0$, $4590.0$ and $4599.5$ $\mathrm{MeV}$. non-zero near $\Lambda_{c}^{+} production threshold discerned. At center-of-mass energies $\sqrt{s}=4574.5$ $4599.5 $ $\mathrm{MeV}$, higher statistics enable us to measure $\Lambda_{c}$ polar angle distributions. From these, ratio between...
Abstract Using inclusive decays of , a precise determination the number events collected with BESIII detector was performed. For two data sets taken in 2009 and 2012, numbers were recalculated to be respectively; these are good agreement previous measurements. sample 2017–2019, determined . The total where uncertainty is dominated by systematic effects, statistical negligible.
Abstract From December 2019 to June 2021, the BESIII experiment collected approximately 5.85 fb −1 of data at center-of-mass energies between 4.61 and 4.95 GeV. This is highest collision energy BEPCII has reached date. The accumulated annihilation samples are useful for studying charmonium(-like) states charmed-hadron decays. By adopting a novel method analyzing production pairs in annihilation, measured with precision 0.6 MeV. Integrated luminosities better than 1% by events large-angle...
Using a sample of $1.31\times10^9$ $J/\psi$ events collected with the BESIII detector at electron-positron collider BEPCII, we analyse full $J/\psi \to$ $\Xi^-\overline{\Xi}^+$, $\Xi^-\to \Lambda \pi^-$, $\Lambda\to p\pi^-$, $\overline{\Xi}^+\to\overline{\Lambda}\pi^+$, $\overline{\Lambda}\to\overline{p}\pi^+$ decay chain. A new method, exploiting fact that $\Xi^-\overline{\Xi}^+$ pair is entangled and sequentially decaying, where complete chains are reconstructed, applied for first time....
Abstract The integrated luminosities of data samples collected in the BESIII experiment 2016–2017 at center-of-mass energies between 4.19 and 4.28 GeV are measured with a precision better than 1% by analyzing large-angle Bhabha scattering events. old datasets 2010–2014 updated considering corrections related to detector performance, offsetting effect newly discovered readout errors electromagnetic calorimeter, which can haphazardly occur.
We study the process e^{+}e^{-}→Λ_{c}^{+}Λ[over ¯]_{c}^{-} at twelve center-of-mass energies from 4.6119 to 4.9509 GeV using data samples collected by BESIII detector BEPCII collider. The Born cross sections and effective form factors (|G_{eff}|) are determined with unprecedented precision after combining single double-tag methods based on decay Λ_{c}^{+}→pK^{-}π^{+}. Flat around 4.63 obtained no indication of resonant structure Y(4630), as reported Belle, is found. In addition, oscillatory...
Abstract Electrocatalytic conversion of biomass‐derived 5‐hydroxymethylfurfural (HMF) to value‐added 2,5‐furandicarboxylic acid (FDCA) is great significance in compensating for the rapid consumption fossil resources. However, it a challenge further improve performance HMF electrocatalytic oxidation (HMFOR) by synergistic kinetics (active sites) and thermodynamics (adsorption sites). In this work, Al(OH) 3 /Co(OH) 2 successfully fabricated as an efficient catalyst, its catalytic mechanism...
Based on 4.4 fb−1 of e+e− annihilation data collected at the center-of-mass energies between 4.60 and 4.70 GeV with BESIII detector BEPCII collider, pure W-boson-exchange decay Λc+→Ξ0K+ is studied a full angular analysis. The corresponding asymmetry measured for first time to be αΞ0K+=0.01±0.16(stat)±0.03(syst). This result reflects noninterference effect S- P-wave amplitudes. phase shift amplitudes has two solutions, which are δp−δs=−1.55±0.25(stat)±0.05(syst) rad or...
A measurement of the number J/ψ events collected with BESIII detector in 2009 and 2012 is performed using inclusive decays J/ψ. The taken recalculated to be (223.7 ± 1.4) × 106, which good agreement previous measurement, but significantly improved precision due improvements software. determined (1086.9 6.0) 106. In total, measured (1310.6 7.0) where uncertainty dominated by systematic effects statistical negligible.
The cross sections of $e^+e^- \rightarrow K^+K^-J/\psi$ at center-of-mass energies from 4.127 to 4.600~GeV are measured based on 15.6 fb$^{-1}$ data collected with the BESIII detector operating BEPCII storage ring. Two resonant structures observed in line shape sections. mass and width first structure be ($4225.3\pm2.3\pm21.5$) MeV ($72.9\pm6.1\pm30.8$)~MeV, respectively. They consistent those established $Y(4230)$. second is for time a statistical significance greater than 8$\sigma$,...
The exclusive process $e^+e^-\rightarrow\Lambda\bar{\Lambda}$, with $\Lambda \to p\pi^-$ and $\bar{\Lambda} \bar{p}\pi^+$, has been studied at $\sqrt{s} =$ 2.396 GeV for measurement of the $\Lambda$ electric magnetic form factors, $G_E$ $G_M$. A data sample, corresponding to an integrated luminosity 66.9 pb$^{-1}$, was collected BESIII detector this purpose. multi-dimensional analysis a complete decomposition spin structure reaction enables determination modulus ratio $R=|G_E/G_M|$ and,...
During the 2016-17 and 2018-19 running periods, BESIII experiment collected 7.5~fb$^{-1}$ of $e^+e^-$ collision data at center-of-mass energies ranging from 4.13 to 4.44 GeV. These samples are primarily used for study excited charmonium charmoniumlike states. By analyzing di-muon process $e^{+}e^{-} \to (\gamma_{\rm ISR/FSR}) \mu^{+}\mu^{-}$, we measure with a precision 0.6 MeV. Through run-by-run study, find that were stable throughout most data-taking period.
The singly Cabibbo-suppressed decay Λ_{c}^{+}→nπ^{+} is observed for the first time with a statistical significance of 7.3σ by using 3.9 fb^{-1} e^{+}e^{-} collision data collected at center-of-mass energies between 4.612 and 4.699 GeV BESIII detector BEPCII. branching fraction measured to be (6.6±1.2_{stat}±0.4_{syst})×10^{-4}. By taking upper limit fractions Λ_{c}^{+}→pπ^{0} from Belle experiment, ratio calculated larger than 7.2 90% confidence level, which disagrees most predictions...
We perform for the first time an amplitude analysis of decay D+→KS0π+η and report observation D+→KS0a0(980)+ using 2.93 fb−1 e+e− collision data taken at a center-of-mass energy 3.773 GeV with BESIII detector. As only W-annihilation-free among D to a0(980) pseudoscalar, is ideal in extracting contributions W-emission amplitudes involving study final-state interactions. The absolute branching fraction measured be (1.27±0.04stat±0.03syst)%. fractions intermediate processes a0(980)+→π+η...