G. L. Tong
A5033062897- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Superconducting Materials and Applications
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Black Holes and Theoretical Physics
- Medical Imaging Techniques and Applications
- Sparse and Compressive Sensing Techniques
- Nuclear physics research studies
- Advanced SAR Imaging Techniques
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Radioactive Decay and Measurement Techniques
- Microwave Imaging and Scattering Analysis
- Magnetic Field Sensors Techniques
- Cosmology and Gravitation Theories
- Particle accelerators and beam dynamics
- Textile materials and evaluations
- Data Mining Algorithms and Applications
- Data Stream Mining Techniques
- Sports Dynamics and Biomechanics
Nanjing University of Science and Technology
2023-2025
Institute of High Energy Physics
2005-2020
The University of Texas at Dallas
2020
Chinese Academy of Sciences
2005-2013
Zhengzhou University
2009-2010
University of Chinese Academy of Sciences
2009-2010
Cornell University
2009
University of Colorado Boulder
2008
GANIL
2006-2008
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2008
In this work, we investigate the gridless parameter estimation of pulse–Doppler radar targets using a reduced number samples under limited bit budget. We propose hybrid analog and digital (HAD) acquisition system integrating tunable component, low-resolution quantizers, filter. Under framework task-based quantization, HAD architecture is designed to optimize target within constraints Specifically, small subset received signal observed low-rank matrix recovered completion techniques. The...
The BES experiment at the Beijing electron-positron collider has observed ξ(2230) signal in π+π−, K+K−, K0SK0S, and p¯p final states with 4.6σ, 4.1σ, 4.0σ, 3.8σ statistical significances, respectively. new observations of two nonstrange decay modes ξ→π+π− are important evidence for glueball interpretation ξ(2230).Received 30 October 1995DOI:https://doi.org/10.1103/PhysRevLett.76.3502©1996 American Physical Society
The decays of $J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\eta}\ensuremath{\phi}{f}_{0}(980)[\ensuremath{\eta}\ensuremath{\rightarrow}\ensuremath{\gamma}\ensuremath{\gamma},\ensuremath{\phi}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}},{f}_{0}(980)\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}]$ are analyzed using a sample $5.8\ifmmode\times\else\texttimes\fi{}{10}^{7}$ $J/\ensuremath{\psi}$ events collected with the BESII detector at...
Using a data sample with total integrated luminosity of 10.0 pb$^{-1}$ collected at center-of-mass energies 2.6, 3.07 and 3.65 GeV BESII, cross sections for $e^+e^-$ annihilation into hadronic final states ($R$ values) are measured statistical errors that smaller than 1%, systematic about 3.5%. The running strong interaction coupling constants $α_s^{(3)}(s)$ $α_s^{(5)}(M_Z^2)$ determined from the $R$ values.
The mass of the τ lepton has been measured at Beijing Electron-Positron Collider using Spectrometer. A search near threshold for e+e−→τ+τ− was performed. Candidate events were identified by requiring that one decay via τ→eνν¯, and other τ→μνν¯. value, obtained from a fit to energy dependence τ+τ− cross section, is mτ=1776.9+0.4−0.5±0.2 MeV.Received 7 August 1992DOI:https://doi.org/10.1103/PhysRevLett.69.3021©1992 American Physical Society
We report the first observation of J/ψ→ηK*0K¯*0 decay in a J/ψ sample 58 million events collected with BESII detector. The branching fraction is determined to be (1.15±0.13±0.22)×10−3. selected signal event further used search for Y(2175) resonance through J/ψ→ηY(2175), Y(2175)→K*0K¯*0. No evidence seen. An upper limit Br(J/ψ→ηY(2175))⋅Br(Y(2175)→K*0K¯*0)<2.52×10−4 set at 90% confidence level.
Using psi(2S) --> pi(+)pi(-) J/psi events in a sample of 14.0 x 10(6) decays collected with the BES-II detector, search for decay to invisible final states is performed. No signal found, and an upper limit at 90% confidence level determined be 1.2 10(-2) ratio B(J/psi invisible)/B(J/psi-->mu(+)mu(-)). This first states.
The decay $J/\psi \to \omega p \bar p$ is studied using a $5.8 \times 10^7$ $J/\psi$ event sample accumulated with the BES II detector at Beijing electron-positron collider. branching fraction measured to be $B(J/\psi p)=(9.8\pm 0.3\pm 1.4)\times 10^{-4}$. No significant enhancement near $p\bar mass threshold observed, and an upper limit of X(1860))B(X(1860)\to p\bar p)$$ $$< 1.5 10^{-5}$ determined 95% confidence level, where X(1860) designates near-threshold seen in spectrum \gamma decays.
By analyzing the data collected at center-of-mass energy ${E}_{\mathrm{cm}}=3.773\text{ }\text{ }\mathrm{GeV}$ and below $D\overline{D}$ meson pair production threshold with BES-II detector BEPC Collider, we directly measured observed non-$D\overline{D}$ cross section of $\ensuremath{\psi}(3770)$ decay to be...
Using a sample of 58 million $J/\ensuremath{\psi}$ events collected with the BESII detector at BEPC, more than 100 000 $J/\ensuremath{\psi}\ensuremath{\rightarrow}p\overline{p}{\ensuremath{\pi}}^{0}$ are selected, and detailed partial wave analysis is performed. The branching fraction determined to be...
We observe an obvious anomalous line shape of the ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}$ hadrons total cross sections in energy region between 3.700 and 3.872 GeV. It is inconsistent with explanation for only one simple $\ensuremath{\psi}(3770)$ resonance a statistical significance $7\ensuremath{\sigma}$. The may be explained by two possible enhancements inclusive hadron production near center-of-mass energies 3.764 3.779 GeV, indicating that either there likely new structure...
The data on $J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}{K}^{+}{K}^{\ensuremath{-}}$ from the BES experiment at Beijing electron-positron collider have been analyzed. We find two resonances in 1.7 GeV region which were identified as ${f}_{J}(1710)$: a scalar with mass $1781\ifmmode\pm\else\textpm\fi{}{8}_{\ensuremath{-}31}^{+10}(\mathrm{MeV})$ and width $85\ifmmode\pm\else\textpm\fi{}{24}_{\ensuremath{-}19}^{+22}(\mathrm{MeV})$, tensor...
Using 14 x 10(6) psi(2S) events accumulated at the BESII detector, we report first measurements of branching fractions or upper limits for decays into gammapp, gamma2(pi+pi-), gammaKS0K+pi-+c.c., gammaK+K-pi+pi-, gammaK*0K-pi++c.c., gammaK*0K*0, gammapi+pi-pp, gamma2(K+K-), gamma3(pi+pi-), and gamma2(pi+pi-)K+K- with invariant mass hadrons below 2.9 GeV/c2. We also 2(pi+pi-)pi0, omegapi+pi-, omegaf2(1270), b1+/-pi-/+, pi02(pi+pi-)K+K-.
The decay J/ψ→γπ0π0 is studied with 7.0×106J/ψ events collected in the neutral trigger mode by Beijing Spectrometer at Electron-Positron Collider. Evidence for existence of fJ(1710) and ξ(2230) this channel presented, corresponding masses as well product branching ratios are obtained. An interpretation a glueball favored.Received 4 March 1998DOI:https://doi.org/10.1103/PhysRevLett.81.1179©1998 American Physical Society
Based on 58×106 J/ψ events collected with the BESII detector at Beijing Electron-Positron Collider, baryon pair processes J/ψ→Σ+Σ¯− and J/ψ→Ξ0Ξ¯0 are observed for first time. The branching fractions measured to be B(J/ψ→Σ+Σ¯−)=(1.50±0.10±0.22)×10−3 B(J/ψ→Ξ0Ξ¯0)=(1.20±0.12±0.21)×10−3, where errors statistical second ones systematic.Received 12 October 2008DOI:https://doi.org/10.1103/PhysRevD.78.092005©2008 American Physical Society