C. Q. Feng
A5026958214- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Autonomous Vehicle Technology and Safety
- Radiation Detection and Scintillator Technologies
- Traffic control and management
- Advanced Algebra and Geometry
- Silicon Carbide Semiconductor Technologies
- Economic Zones and Regional Development
- Mechanical Failure Analysis and Simulation
- Electromagnetic Simulation and Numerical Methods
- Mechanical Engineering and Vibrations Research
- Cold Atom Physics and Bose-Einstein Condensates
- Virus-based gene therapy research
- Gait Recognition and Analysis
- Context-Aware Activity Recognition Systems
- Smart Grid Security and Resilience
- Robotics and Automated Systems
- Network Security and Intrusion Detection
University of Science and Technology of China
2016-2025
Zhengzhou University
2025
Zhejiang Medicine (China)
2025
Merchants Chongqing Communications Research and Design Institute
2023
Using 1.09×10^{9} J/ψ events collected by the BESIII experiment in 2012, we study J/ψ→γη^{'}π^{+}π^{-} process and observe a significant abrupt change slope of η^{'}π^{+}π^{-} invariant mass distribution at proton-antiproton (pp[over ¯]) threshold. We use two models to characterize line shape around 1.85 GeV/c^{2}: one that explicitly incorporates opening decay threshold spectrum (Flatté formula), another is coherent sum resonant amplitudes. Both fits show almost equally good agreement with...
A bstract Using 24.1 fb − 1 of e + collision data collected with the BESIII detector at BEPCII collider, Born cross sections and effective form factors $$ {e}^{+}{e}^{-}\to {\Sigma}^{+}{\overline{\Sigma}}^{-} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>−</mml:mo> <mml:mo>→</mml:mo> <mml:mi>Σ</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> reaction are measured. The measurements performed...
We measure the Born cross section for reaction <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msup><a:mrow><a:mi>e</a:mi></a:mrow><a:mrow><a:mo>+</a:mo></a:mrow></a:msup><a:msup><a:mrow><a:mi>e</a:mi></a:mrow><a:mrow><a:mo>−</a:mo></a:mrow></a:msup><a:mo stretchy="false">→</a:mo><a:mi>η</a:mi><a:msub><a:mrow><a:mi>h</a:mi></a:mrow><a:mrow><a:mi>c</a:mi></a:mrow></a:msub></a:mrow></a:math> from <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"...
We search for the leptonic decay $D^+\to e^+\nu_{e}$ using an $e^+e^-$ collision data sample with integrated luminosity of 20.3~fb$^{-1}$ collected BESIII detector at center-of-mass energy 3.773~GeV. No significant signal is observed and upper limit on branching fraction set as $9.7 \times 10^{-7}$, 90\% confidence level. Our order magnitude smaller than previous this mode.
A bstract The process $$ {e}^{+}{e}^{-}\to {K}_S^0{K}_S^0\psi (3686) <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>−</mml:mo> <mml:mo>→</mml:mo> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> <mml:mi>ψ</mml:mi> <mml:mfenced> <mml:mn>3686</mml:mn> </mml:mfenced> </mml:math> is studied by analyzing e + − collision data samples collected at eight center-of-mass energies...
Using a sample of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mo stretchy="false">(</a:mo><a:mn>2712</a:mn><a:mo>±</a:mo><a:mn>14</a:mn><a:mo stretchy="false">)</a:mo><a:mo>×</a:mo><a:msup><a:mn>10</a:mn><a:mn>6</a:mn></a:msup><a:mtext> </a:mtext><a:mtext> </a:mtext><a:mi>ψ</a:mi><a:mo stretchy="false">(</a:mo><a:mn>3686</a:mn><a:mo stretchy="false">)</a:mo></a:math> events collected with the BESIII detector, we perform partial wave analyses decays <g:math...
Commercial X-EPS steering gears are characterized by high torque output, torque—with increasing capabilities, reliability, and excellent handling precision. Among them, the screw–nut pair in gear is subjected to complex working loads, its raceways prone fatigue failure. To more accurately effectively predict life of gear, a method for dynamic simulation prediction commercial proposed based on virtual prototyping technology finite element theory. That is, rigid–flexible coupling model...
Using a data sample of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mo stretchy="false">(</a:mo><a:mn>10087</a:mn><a:mo>±</a:mo><a:mn>44</a:mn><a:mo stretchy="false">)</a:mo><a:mo>×</a:mo><a:mrow><a:msup><a:mrow><a:mn>10</a:mn></a:mrow><a:mrow><a:mn>6</a:mn></a:mrow></a:msup></a:mrow></a:mrow></a:math> <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mi>J</e:mi><e:mo>/</e:mo><e:mi>ψ</e:mi></e:math> events collected with the BESIII...
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mo stretchy="false">(</a:mo><a:mn>10087</a:mn><a:mo>±</a:mo><a:mn>44</a:mn><a:mo stretchy="false">)</a:mo><a:mo>×</a:mo><a:msup><a:mn>10</a:mn><a:mn>6</a:mn></a:msup><a:mtext> </a:mtext><a:mtext> </a:mtext><a:mi>J</a:mi><a:mo>/</a:mo><a:mi>ψ</a:mi></a:math> decays collected by the BESIII detector at BEPCII collider, we search for baryon number violation via <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"...
We report the first observation of D^{+}→τ^{+}ν_{τ} with a significance 5.1σ. measure B(D^{+}→τ^{+}ν_{τ})=(1.20±0.24_{stat}±0.12_{syst})×10^{-3}. Taking world average B(D^{+}→μ^{+}ν_{μ})=(3.74±0.17)×10^{-4}, we obtain R_{τ/μ}=Γ(D^{+}→τ^{+}ν_{τ})/Γ(D^{+}→μ^{+}ν_{μ})=3.21±0.64_{stat}±0.43_{syst}., which is consistent standard model expectation lepton flavor universality. Using external inputs, our results give values for D^{+} decay constant f_{D^{+}} and Cabibbo-Kobayashi-Maskawa matrix...
A bstract Using e + − collision data corresponding to a total integrated luminosity of 12.9 fb 1 collected with the BESIII detector at BEPCII collider, exclusive Born cross sections and effective form factors reaction $$ {e}^{+}{e}^{-}\to {\Xi}^{-}{\overline{\Xi}}^{+} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>e</mml:mi> <mml:mo>+</mml:mo> </mml:msup> <mml:mo>−</mml:mo> <mml:mo>→</mml:mo> <mml:mi>Ξ</mml:mi> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover>...
A bstract Based on e + − collision data collected at center-of-mass energies from 2.000 to 3.080 GeV by the BESIII detector BEPCII collider, a partial wave analysis is performed for process → $$ {K}_S^0{K}_L^0 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>K</mml:mi> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> <mml:mi>L</mml:mi> </mml:math> π 0 . The results allow Born cross sections of , as well its subprocesses K ∗ (892) \overline{K} <mml:mover>...
Using the $e^+e^-$ collision data collected with BESIII detector operating at BEPCII collider, center-of-mass energies from threshold to $4.95$~GeV, we present precise measurements of cross sections for process $e^+e^-\to D_s^+D_s^-$ using a single tag method. The resulting section lineshape exhibits several new structures, thereby offering an input coupled channel analysis and model tests, which are critical understand vector charmonium-like states masses between 4 5~GeV.
Using a data sample of (1310.6±7.0)×106 J/ψ decay events collected with the BESIII detector at BEPCII, we study electromagnetic Dalitz J/ψ→η′e+e− two dominant η′ modes, η′→γπ+π− and η′→π+π−η. The branching fraction is determined to be B(J/ψ→η′e+e−)=(6.59±0.07±0.17)×10−5, which improves in precision by factor 2 over previous measurement. A search for dark photon (γ′) performed via J/ψ→η′γ′, γ′→e+e−. Excluding ω ϕ mass regions, no significant signal observed range from 0.1 2.1 GeV/c2. We set...
Using data samples with a total integrated luminosity of approximately 18 fb$^{-1}$ collected by the BESIII detector operating at BEPCII, process $e^+e^-\rightarrow\Lambda\bar{\Lambda} \eta$ is studied center-of-mass energies between 3.5106 and 4.6988 GeV. The Born cross section for $e^+e^-\rightarrow\Lambda\bar{\Lambda}\eta$ measured. No significant structure observed in line shape. An enhancement near $\Lambda\bar{\Lambda}$ mass threshold first time process. can be described an $S$-wave...
We report a first study of the semileptonic decay $D^0\rightarrow K^-\pi^0\mu^{+}\nu_{\mu}$ by analyzing an $e^+e^-$ annihilation data sample $7.9~\mathrm{fb}^{-1}$ collected at center-of-mass energy 3.773 GeV with BESIII detector. The absolute branching fraction $D^0\to is measured for time to be $(0.729 \pm 0.014_{\rm stat} 0.011_{\rm syst})\%$. Based on amplitude analysis, $S\text{-}{\rm wave}$ contribution determined $(5.76 0.35_{\rm 0.29_{\rm syst})\%$ total rate in addition dominated...
We measure the Born cross section for reaction $e^{+}e^{-} \rightarrow \eta h_c$ from $\sqrt{s} = 4.129$ to $4.600$~GeV using data sets collected by BESIII detector running at BEPCII collider. A resonant structure in line shape near 4.200~GeV is observed with a statistical significance of 7$\sigma$. The parameters this resonance are measured be \MeasMass\ and \MeasWidth, where first uncertainties second systematic.
Based on <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mo stretchy="false">(</a:mo><a:mn>2712.4</a:mn><a:mo>±</a:mo><a:mn>14.1</a:mn><a:mo stretchy="false">)</a:mo><a:mo>×</a:mo><a:msup><a:mrow><a:mn>10</a:mn></a:mrow><a:mrow><a:mn>6</a:mn></a:mrow></a:msup></a:mrow></a:math> <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mrow><e:mi>ψ</e:mi><e:mo stretchy="false">(</e:mo><e:mn>3686</e:mn><e:mo...
A bstract Using e + − collision data collected at the BESIII detector center-of-mass energies between 4.128 and 4.226 GeV, corresponding to an integrated luminosity of 7 . 33 fb 1 , we determine absolute branching fractions fifteen hadronic $$ {D}_s^{+} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>D</mml:mi> <mml:mi>s</mml:mi> <mml:mo>+</mml:mo> </mml:msubsup> </mml:math> decays with a double-tag technique. In particular, make precise measurements...
A bstract We measured the Born cross sections for process e + − → ωη ′ at 22 center-of-mass energies from 2.000 to 3.080 GeV with BESIII detector BEPCII collider. observed a resonant structure statistical significance of 9.6 σ . Breit-Wigner fit determines its mass be M R = (2153 ± 30 31) MeV /c 2 and width Γ (167 77 7) MeV, where first uncertainties are second systematic.
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>9.0</a:mn><a:mtext> </a:mtext><a:mtext> </a:mtext><a:mi mathvariant="normal">f</a:mi><a:msup><a:mrow><a:mi mathvariant="normal">b</a:mi></a:mrow><a:mrow><a:mo>−</a:mo><a:mn>1</a:mn></a:mrow></a:msup></a:mrow></a:math> of <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:msup><e:mi>e</e:mi><e:mo>+</e:mo></e:msup><e:msup><e:mi>e</e:mi><e:mo>−</e:mo></e:msup></e:math> collision data...