A5001202830- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Interconnection Networks and Systems
- Advanced Graph Theory Research
- Graph theory and applications
- Graphene research and applications
- Graph Labeling and Dimension Problems
- Advancements in Battery Materials
- Software-Defined Networks and 5G
- Advanced Battery Technologies Research
- Matrix Theory and Algorithms
- Dark Matter and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Black Holes and Theoretical Physics
- Complexity and Algorithms in Graphs
- Finite Group Theory Research
- Analytic Number Theory Research
- Neutrino Physics Research
- Reliability and Maintenance Optimization
- Advanced Mathematical Identities
- Advanced Combinatorial Mathematics
- Distributed systems and fault tolerance
- Advanced Optical Network Technologies
- Atomic and Subatomic Physics Research
Nanjing Normal University
2016-2025
Xiamen University of Technology
2013-2024
Institute of High Energy Physics
2015
Carnegie Mellon University
2013
Henan University of Technology
2011-2012
Xiamen University
2009-2012
Xinjiang University
2008
We report the first measurement of absolute hadronic branching fractions ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}$ baryon at ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}{\overline{\mathrm{\ensuremath{\Lambda}}}}_{c}^{\ensuremath{-}}$ production threshold, in 30 years since discovery. In total, 12 Cabibbo-favored decay modes are analyzed with a double-tag technique, based on sample $567\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ ${e}^{+}{e}^{\ensuremath{-}}$ collisions $\sqrt{s}=4.599\text{...
We study the process ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\ensuremath{\psi}(3686)$ using $5.1\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ of data collected at 16 center-of-mass energy ($\sqrt{s}$) points from 4.008 to 4.600 GeV by BESIII detector operating BEPCII collider. The measured Born cross sections for are consistent with previous results, but much improved precision. A fit section shows contributions two...
In an analysis of a $2.92\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample taken at 3.773 GeV with the BESIII detector operated BEPCII collider, we measure absolute decay branching fractions $\mathcal{B}({D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{e}^{+}{\ensuremath{\nu}}_{e})=(3.505\ifmmode\pm\else\textpm\fi{}0.014\ifmmode\pm\else\textpm\fi{}0.033)%$ and...
Using data samples collected with the BESIII detector at BEPCII collider, we measure Born cross section of ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}p\overline{p}$ 12 center-of-mass energies from 2232.4 to 3671.0 MeV. The corresponding effective electromagnetic form factor proton is deduced under assumption that electric and magnetic factors are equal $(|{G}_{E}|=|{G}_{M}|)$. In addition, ratio factors, $|{G}_{E}/{G}_{M}|$, $|{G}_{M}|$ extracted by fitting polar angle distribution...
We study the e^{+}e^{-}→γωJ/ψ process using 11.6 fb^{-1} e^{+}e^{-} annihilation data taken at center-of-mass energies from sqrt[s]=4.008 GeV to 4.600 with BESIII detector BEPCII storage ring. The X(3872) resonance is observed for first time in ωJ/ψ system a significance of more than 5σ. relative decay ratio X(3872)→ωJ/ψ and π^{+}π^{-}J/ψ measured be R=1.6_{-0.3}^{+0.4}±0.2, where uncertainty statistical second systematic (the same hereafter). sqrt[s]-dependent cross section...
The cross section of the process $e^+e^-\to \pi^+D^0D^{*-}$ for center-of-mass energies from 4.05 to 4.60~GeV is measured precisely using data samples collected with BESIII detector operating at BEPCII storage ring. Two enhancements are clearly visible in around 4.23 and 4.40~GeV. Using several models describe dressed yields stable parameters first enhancement, which has a mass $4228.6 \pm 4.1 6.3 \un{MeV}/c^2$ width $77.0 6.8 \un{MeV}$, where uncertainties statistical second ones...
The Born cross-sections and effective form factors for process $e^+e^-\to\Xi^-\bar{\Xi}^+$ are measured at eight center-of-mass energies between 2.644 3.080 GeV, using a total integrated luminosity of 363.9 pb$^{-1}$ $e^+e^-$ collision data collected with the BESIII detector BEPCII. After performing fit to cross-section $e^+e^-\to\Xi^-\bar{\Xi}^+$, no significant threshold effect is observed.
Using $e^+e^-$ annihilation data corresponding to a total integrated luminosity of 6.32 $\rm fb^{-1}$ collected at center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform an amplitude analysis decay $D_{s}^{+} \to K_{S}^{0}K_{S}^{0}\pi^{+}$ for first time. An enhancement is observed in $K_{S}^{0}K_{S}^{0}$ mass spectrum near 1.7 GeV/$c^2$, which was not seen K^+K^-\pi^{+}$ earlier work, implying existence isospin one partner $f_0(1710)$. The branching...
The number of ψ' events accumulated by the BESIII experiment from March 3 through April 14, 2009, is determined counting inclusive hadronic events. result 106.41×(1.00±0.81%)×106. error systematic dominant; statistical negligible.
Using a 3.19 fb^{-1} data sample collected at an e^{+}e^{-} center-of-mass energy of E_{cm}=4.178 GeV with the BESIII detector, we measure branching fraction leptonic decay D_{s}^{+}→μ^{+}ν_{μ} to be B_{D_{s}^{+}→μ^{+}ν_{μ}}=(5.49±0.16_{stat}±0.15_{syst})×10^{-3}. Combining our masses D_{s}^{+} and μ^{+} lifetime D_{s}^{+}, determine f_{D_{s}^{+}}|V_{cs}|=246.2±3.6_{stat}±3.5_{syst} MeV. c→s quark mixing matrix element |V_{cs}| determined from global standard model fit, evaluate constant...
The processes X(3872)→D^{*0}D[over ¯]^{0}+c.c.,γJ/ψ,γψ(2S), and γD^{+}D^{-} are searched for in a 9.0 fb^{-1} data sample collected at center-of-mass energies between 4.178 4.278 GeV with the BESIII detector. We observe X(3872)→D^{*0}D^{0}[over ¯]+c.c. find evidence X(3872)→γJ/ψ statistical significances of 7.4σ 3.5σ, respectively. No evident signals X(3872)→γψ(2S) found, upper limit on relative branching ratio R_{γψ}≡{B[X(3872)→γψ(2S)]}/{B[X(3872)→γJ/ψ]}<0.59 is set 90% confidence level....
We report an amplitude analysis and branching fraction measurement of ${D}_{s}^{+}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ decay using a data sample $3.19\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ recorded with BESIII detector at center-of-mass energy 4.178 GeV. perform model-independent partial wave in the low ${K}^{+}{K}^{\ensuremath{-}}$ mass region to determine S-wave line shape, followed by our very pure high-statistics sample. With detection...
We report the first direct measurement of decays Λ_{c}^{+} baryon involving neutron. The analysis is performed using 567 pb^{-1} e^{+}e^{-} collision data collected at sqrt[s]=4.599 GeV with BESIII detector BEPCII collider. observe decay Λ_{c}^{+}→nK_{S}^{0}π^{+} and measure absolute branching fraction to be B(Λ_{c}^{+}→nK_{S}^{0}π^{+})=[1.82±0.23(stat)±0.11(syst)]%. A comparison B[Λ_{c}^{+}→p(K[over ¯]π)^{0}] provides an important test isospin symmetry final state interactions.
Using $e^+e^-\to\Lambda_c^+\bar\Lambda_c^-$ production from a 567 pb$^{-1}$ data sample collected by BESIII at 4.6 GeV, full angular analysis is carried out simultaneously on the four decay modes of $\Lambda_c^+\to pK_S^0$, $\Lambda \pi^+$, $\Sigma^+\pi^0$, and $\Sigma^0\pi^+$. For first time, $\Lambda_c^+$ transverse polarization studied in unpolarized $e^+e^-$ collisions, where non-zero effect observed with statistical significance 2.1$\sigma$. The asymmetry parameters weak hadronic decays...
Reliability of interconnection networks is important to design multiprocessor systems. The extra edge connectivity and component are two parameters for the reliability evaluation. [Formula: see text]-extra text] cardinality minimum cut such that not connected each has at least vertices. text]-component a graph number set components. In this paper, we find relation regular networks. As an application, determine BC networks, text]-ary text]-cubes, enhanced hypercubes.
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...
Using 448.1 $\times$ $10^{6}$ $ψ(3686)$ events collected with the BESIII detector at BEPCII, we employ a single-baryon tagging technique to make first observation of $ψ(3686)\rightarrowΞ(1530)^{-}\barΞ(1530)^{+}$ and $Ξ(1530)^{-}\barΞ^{+}$ decays statistical significance more than 10$σ$ 5.0$σ$, respectively. The branching fractions are measured be $\cal{B}$$[ψ(3686)\rightarrowΞ(1530)^{-}\barΞ(1530)^{+}] $ = (11.45 $\pm$ 0.40 0.59) $10^{-5}$ $\cal{B}$$[ψ(3686)\rightarrowΞ(1530)^{-}\barΞ^{+}]$...
By analyzing a 2.93 fb^{-1} data sample of e^{+}e^{-} collisions, recorded at center-of-mass energy 3.773 GeV with the BESIII detector operated BEPCII collider, we report first observation semileptonic D^{+} transition into axial-vector meson D^{+}→K[over ¯]_{1}(1270)^{0}e^{+}ν_{e} statistical significance greater than 10σ. Its decay branching fraction is determined to be B[D^{+}→K[over ¯]_{1}(1270)^{0}e^{+}ν_{e}]=(2.30±0.26_{-0.21}^{+0.18}±0.25)×10^{-3}, where and second uncertainties are...
With a sample of $225.3\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $J/\ensuremath{\psi}$ events taken with the BESIII detector, decay $J/\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\gamma}3({\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})$ is analyzed. A structure at $1.84\text{ }\text{ }\mathrm{GeV}/{c}^{2}$ observed in $3({\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}})$ invariant mass spectrum statistical significance $7.6\ensuremath{\sigma}$. The and width...