A5113417371- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Black Holes and Theoretical Physics
- Neutrino Physics Research
- Atomic and Subatomic Physics Research
- Topic Modeling
- International Science and Diplomacy
- Advanced NMR Techniques and Applications
- Advanced Algebra and Geometry
- Enzyme Structure and Function
- Higher Education and Employability
- Handwritten Text Recognition Techniques
- Multimodal Machine Learning Applications
- Advanced Algorithms and Applications
- Advanced Sensor and Control Systems
- Nuclear physics research studies
- Metabolomics and Mass Spectrometry Studies
- Graph Theory and Algorithms
- Smart Grid and Power Systems
- Higher Education Learning Practices
- Particle Detector Development and Performance
- Advanced Graph Neural Networks
- Advanced Computational Techniques and Applications
- Machine Fault Diagnosis Techniques
Shandong University
2022-2025
Dalian Jiaotong University
2024
We perform a study of the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>χ</a:mi><a:mrow><a:mi>c</a:mi><a:mn>1</a:mn></a:mrow></a:msub><a:mo stretchy="false">(</a:mo><a:mn>3872</a:mn><a:mo stretchy="false">)</a:mo></a:math> line shape using data samples <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"...
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 perform the first amplitude analysis of D_{s}^{+}→π^{+}π^{+}π^{-}π^{0} decays based on data samples electron-positron collisions recorded with BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, corresponding to an integrated luminosity 7.33 fb^{-1}. report observation D_{s}^{+}→f_{0}(980)ρ(770)^{+} a statistical significance greater than 10σ determine branching fractions B(D_{s}^{+}→π^{+}π^{+}π^{-}π^{0}|_{non-η})=(2.04±0.08_{stat}±0.05_{syst})%...
The <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>C</a:mi><a:mi>P</a:mi></a:math>-even fractions (<c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msub><c:mi>F</c:mi><c:mo>+</c:mo></c:msub></c:math>) of the decays <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mrow><e:msup><e:mrow><e:mi>D</e:mi></e:mrow><e:mrow><e:mn>0</e:mn></e:mrow></e:msup><e:mo...
Using data samples collected by the \mbox{BESIII} detector located at Beijing Electron Positron Collider, cross sections of process $e^+e^-\to f_{1}(1285)\pi^+\pi^-$ are measured forty-five center-of-mass energies from $3.808$ to $4.951 {\rm GeV}$. An investigation on section line shape is performed, and no significant structure observed.
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mo stretchy="false">(</a:mo><a:mrow><a:mn>2712</a:mn><a:mo>±</a:mo><a:mn>14</a:mn></a:mrow><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>2</e:mn><e:mi>S</e:mi><e:mo...
Using <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>14.3</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:mi>ψ</a:mi><a:mo stretchy="false">(</a:mo><a:mn>3686</a:mn><a:mo stretchy="false">)</a:mo></a:mrow></a:math> events collected by the BESIII detector operating at BEPCII collider, we present first...
With the development of intelligent manufacturing systems, data-driven fault diagnosis has become a hot research topic. Traditional methods often rely on expert-extracted features, wherein feature extraction process requires considerable effort and affects final results to great extent. However, end-to-end based deep learning can automatically learn representations from raw data. In this study, first, vibration signals various states planetary gearbox were segmented preprocessed into input...
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...
The inclusive cross sections of prompt <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>J</a:mi><a:mo>/</a:mo><a:mi>ψ</a:mi></a:mrow></a:math> and <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mi>ψ</c:mi><c:mo stretchy="false">(</c:mo><c:mn>3686</c:mn><c:mo stretchy="false">)</c:mo></c:math> production are measured at center-of-mass energies from 3.808 to 4.951 GeV. dataset used is <g:math...
Using a sample of <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mo>∼</a:mo><a:msup><a:mrow><a:mn>10</a:mn></a:mrow><a:mrow><a:mn>10</a:mn></a:mrow></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:mrow></a:math> events collected by the BESIII detector at BEPCII collider, partial-wave analysis decay <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"...
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>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> events accumulated with the BESIII detector, we analyze decays <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"...
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>...
Using <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mn>2.93</a:mn><a:mtext> </a:mtext><a:mtext> </a:mtext><a:msup><a:mi>fb</a:mi><a:mrow><a:mo>−</a:mo><a:mn>1</a:mn></a:mrow></a:msup></a:math> of <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msup><c:mi>e</c:mi><c:mo>+</c:mo></c:msup><c:msup><c:mi>e</c:mi><c:mo>−</c:mo></c:msup></c:math> collision data collected with the BESIII detector at center-of-mass energy 3.773 GeV, we investigate...
We report the first amplitude analyses of decays <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>D</a:mi><a:mn>0</a:mn></a:msup><a:mo stretchy="false">→</a:mo><a:msup><a:mi>π</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>π</a:mi><a:mo>−</a:mo></a:msup><a:mi>η</a:mi></a:math> and <d:math xmlns:d="http://www.w3.org/1998/Math/MathML" display="inline"><d:msup><d:mi>D</d:mi><d:mo>+</d:mo></d:msup><d:mo...
A bstract partial wave analysis on the process e + − → ωπ π is performed using 647 pb 1 of data sample collected by BESIII detector operating at BEPCII storage ring center-of-mass (c.m.) energies from 2.000 GeV to 3.080 GeV. The Born cross section measured, with precision improved a factor 3 compared that previous studies. structure near 2.25 observed in energy-dependent sections and 0 statistical significance 7.6 σ , its determined mass width are 2232 ± 19 27 MeV /c 2 93 53 20 MeV,...
We study the direct production of J^{PC}=1^{++} charmonium state χ_{c1}(1P) in electron-positron annihilation by carrying out an energy scan around mass χ_{c1}(1P). The data were collected with BESIII detector at BEPCII collider. An interference pattern between signal process e^{+}e^{-}→χ_{c1}(1P)→γJ/ψ→γμ^{+}μ^{-} and background processes e^{+}e^{-}→γ_{ISR}J/ψ→γ_{ISR}μ^{+}μ^{-} e^{+}e^{-}→γ_{ISR}μ^{+}μ^{-} is observed combining all samples. a significance 5.1σ. This first observation C-even...
A bstract Using (27 . 12 ± 0 14) × 10 8 ψ (3686) events collected by the BESIII detector at center-of-mass energy of $$ \sqrt{s} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msqrt> <mml:mi>s</mml:mi> </mml:msqrt> </mml:math> = 3 686 GeV, we search for first time two nonleptonic hyperon decays that change strangeness units, Ω − → Σ π and nK No significant signal is observed. The upper limits on their decay branching fractions are determined to be \mathcal{B}...
With the data samples taken at center-of-mass energies from 2.00 to 3.08 GeV with BESIII detector BEPCII collider, a partial wave analysis on <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>e</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>e</a:mi><a:mo>−</a:mo></a:msup><a:mo stretchy="false">→</a:mo><a:mrow><a:msup><a:mi>π</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>π</a:mi><a:mo>−</a:mo></a:msup><a:msup><a:mi>π</a:mi><a:mn>0</a:mn></a:msup></a:mrow></a:math>...
Analyzing <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>e</a:mi><a:mo>+</a:mo></a:msup><a:msup><a:mi>e</a:mi><a:mo>−</a:mo></a:msup></a:math> collision data corresponding to an integrated luminosity of <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mn>7.33</c:mn><c:mtext> </c:mtext><c:mtext> </c:mtext><c:msup><c:mi>fb</c:mi><c:mrow><c:mo>−</c:mo><c:mn>1</c:mn></c:mrow></c:msup></c:math> collected at center-of-mass energies...
Based on <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mo stretchy="false">(</a:mo><a:mn>10.09</a:mn><a:mo>±</a:mo><a:mn>0.04</a:mn><a:mo stretchy="false">)</a:mo><a:mo>×</a:mo><a:msup><a:mn>10</a:mn><a:mn>9</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> events collected with the BESIII detector operating at BEPCII collider, a partial wave analysis of decay <e:math...
The radiative hyperon decay Λ→nγ is studied using (10087±44)×10^{6} J/ψ events collected with the BESIII detector operating at BEPCII. absolute branching fraction of determined to be (0.832±0.038_{stat}±0.054_{syst})×10^{-3}, which a factor 2.1 lower and 5.6 standard deviations different than previous measurement. By analyzing joint angular distribution products, first determination asymmetry α_{γ} reported value -0.16±0.10_{stat}±0.05_{syst}.
A bstract The Born cross sections of the processes e + − → ωπ 0 and ωη are measured at center-of-mass energies between 3.773 4.701 GeV using a total integrated luminosity 22.7 fb 1 collected with BESIII detector operating BEPCII collider. simple s −n dependence for continuum process can describe sections. No significant contributions from ψ (4160), Y (4230), (4360), (4415), (4660) resonances found, which indicates relative small branching fractions these into final states.
Using a data sample of $(448.1 \pm 2.9)\times10^6 ~\psi(3686)$ decays collected at an $e^+ e^-$ center-of-mass energy $3.686~\rm{GeV}$ by the BESIII detector BEPCII, we report observation hindered electromagnetic Dalitz decay $\psi(3686) \to e^+ e^- \eta_c$ with significance $7.9\sigma$. The branching fraction is determined to be $\mathcal{B} (\psi(3686) \eta_c) = (3.77 0.40_{\rm stat.} 0.18_{\rm syst.})\times 10^{-5}$, agreeing well prediction vector meson dominance model. This first...