A5059363328- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Computational Physics and Python Applications
- Particle Detector Development and Performance
- Black Holes and Theoretical Physics
- Dark Matter and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Calibration and Measurement Techniques
- Cosmology and Gravitation Theories
- Physics of Superconductivity and Magnetism
- Astrophysics and Cosmic Phenomena
- Superconducting Materials and Applications
- Radiation Detection and Scintillator Technologies
- Gamma-ray bursts and supernovae
- Scientific Computing and Data Management
- International Science and Diplomacy
- Lipid metabolism and biosynthesis
- NMR spectroscopy and applications
- Distributed and Parallel Computing Systems
- Crystallization and Solubility Studies
Hunan Normal University
2025
Institute of High Energy Physics
2018-2024
Zhengzhou University of Light Industry
2024
Campbell Collaboration
2015-2022
University of Cincinnati
2020-2022
MSD (Mexico)
2021
Chinese Academy of Sciences
2017-2020
Max Planck Institute for Physics
2018
University of Science and Technology of China
2016-2017
With the full data sample of $772 \times 10^6$ $B{\bar B}$ pairs recorded by Belle detector at KEKB electron-positron collider, decay $\bar{B} \rightarrow D^* \tau^- \bar{\nu}_\tau$ is studied with hadronic $\tau$ decays $\tau^- \pi^- \nu_\tau$ and \rho^- \nu_\tau$. The polarization $P_\tau(D^*)$ in two-body measured, as well ratio branching fractions $R(D^{*}) = \mathcal{B}(\bar {B} \bar{\nu}_\tau) / \mathcal{B}(\bar{B} \ell^- \bar{\nu}_\ell)$, where $\ell^-$ denotes an electron or a muon....
Using the entire Belle data sample of 980 ${\rm fb}^{-1}$ $e^+e^-$ collisions, we present results a study excited $\Omega_c$ charmed baryons in decay mode $\Xi_c^+K^-$. We show confirmation four five narrow states reported by LHCb Collaboration: $\Omega_c(3000)$ , $\Omega_c(3050)$, $\Omega_c(3066)$, and $\Omega_c(3090)$.
Since searches for the low-lying excited baryons <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi mathvariant="normal">Ξ</a:mi><a:mo stretchy="false">(</a:mo><a:mn>1</a:mn><a:mo>/</a:mo><a:msup><a:mn>2</a:mn><a:mo>−</a:mo></a:msup><a:mo stretchy="false">)</a:mo></a:math> and <f:math xmlns:f="http://www.w3.org/1998/Math/MathML" display="inline"><f:mi mathvariant="normal">Σ</f:mi><f:mo...
We report the first observation of $$\Xi _{c}(2930)^0$$ charmed-strange baryon with a significance greater than 5 $$\sigma $$ . The is found in its decay to $$K^- \Lambda _{c}^+$$ $$B^{-} \rightarrow K^{-} _{c}^{+} \bar{\Lambda }_{c}^{-}$$ decays. measured mass and width are $$[2928.9 \pm 3.0(\mathrm stat.)^{+0.9}_{-12.0}(\mathrm syst.)]$$ MeV/ $$c^{2}$$ $$[19.5 8.4(\mathrm stat.) ^{+5.9}_{-7.9}(\mathrm MeV, respectively, product branching fraction $$\mathcal{B}(B^{-} \Xi _{c}(2930)^0...
A bstract We report a new measurement of the e + − → ϒ( nS ) π ( n = 1 , 2 3) cross sections at energies from 10 . 52 to 11 02 GeV using data collected with Belle detector KEKB asymmetric-energy collider. observe structure in energy dependence sections; if described by Breit-Wigner function its mass and width are found be $$ M=\left(10752.7\pm {5.9}_{-1.1}^{+0.7}\right)\mathrm{MeV}/{c}^2 <mml:math...
Belle II is an experiment operating at the intensity frontier. Over next decades, it will record decay of billions bottom mesons, charm hadrons, and tau leptons produced in 10 GeV electron-positron collisions SuperKEKB high-luminosity collider KEK. These data, collected low-background kinematically known conditions, allow us to measure hundreds parameters that test standard model (SM) probe for existence new particles, mass scales orders magnitudes higher than those studied energy We project...
Using data samples of $e^+e^-$ collisions collected at the $\Upsilon(1S)$, $\Upsilon(2S)$, and $\Upsilon(3S)$ resonances with Belle detector, we search for three-body decay $\Omega(2012)$ baryon to $K\pi\Xi$. This is predicted dominate models describing as a $K\Xi(1530)$ molecule. No significant signals are observed in studied channels, 90\% credibility level upper limits on ratios branching fractions relative $K \Xi$ modes obtained.
In the bottomonium sector, hindered magnetic dipole transitions between P-wave states <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msub><a:mrow><a:mi>h</a:mi></a:mrow><a:mrow><a:mi>b</a:mi></a:mrow></a:msub><a:mo stretchy="false">(</a:mo><a:mn>2</a:mn><a:mi>P</a:mi><a:mo stretchy="false">)</a:mo><a:mo stretchy="false">→</a:mo><a:msub><a:mrow><a:mi>χ</a:mi></a:mrow><a:mrow><a:mi>b</a:mi><a:mi>J</a:mi></a:mrow></a:msub><a:mo...
Since searches for the low-lying excited baryons $\Xi(1/2^-)$ and $\Sigma(1/2^-)$ are crucial to deepening our understanding of light baryon spectrum, we have investigated Cabibbo-favored process $\Xi_c^+ \to \Lambda {\bar{K}}^0 \pi^+$ by taking into account $S$-wave pseudoscalar meson-octet interactions within chiral unitary approach, which could dynamically generate resonances $\Sigma(1/2^-)$. The contributions from kaons double Cabibbo-suppressed, contribution $\Sigma(1385)$ is also...
We report measurements of production cross sections for <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi>ρ</a:mi><a:mo>+</a:mo></a:msup></a:math>, <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msup><c:mi>ρ</c:mi><c:mn>0</c:mn></c:msup></c:math>, <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mi>ω</e:mi></e:math>, <g:math xmlns:g="http://www.w3.org/1998/Math/MathML"...
We present a measurement of the ratio partial branching fractions semileptonic inclusive decays, <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mover accent="true"><a:mi>B</a:mi><a:mo stretchy="false">¯</a:mo></a:mover><a:mo stretchy="false">→</a:mo><a:msub><a:mi>X</a:mi><a:mi>u</a:mi></a:msub><a:mo>ℓ</a:mo><a:mover accent="true"><a:mi>ν</a:mi><a:mo stretchy="false">¯</a:mo></a:mover></a:math> to <h:math xmlns:h="http://www.w3.org/1998/Math/MathML"...
We report a study of Λ+c→Σ+π0, Λ+c→Σ+η, and Λ+c→Σ+η′ using the data sample corresponding to an integrated luminosity 980 fb−1 collected with Belle detector at KEKB asymmetric-energy e+e− collider. The branching fractions relative Λ+c→Σ+π0 are measured as BΛ+c→Σ+η/BΛ+c→Σ+π0=0.25±0.03±0.01 BΛ+c→Σ+η′/BΛ+c→Σ+π0=0.33±0.06±0.02. Using BΛ+c→Σ+π0=(1.25±0.10)%, we obtain BΛ+c→Σ+η=(3.14±0.35±0.17±0.25)×10−3 BΛ+c→Σ+η′=(4.16±0.75±0.25±0.33)×10−3. Here uncertainties statistical, systematic, from...
We present a study of singly Cabibbo-suppressed decay Λ+c→pK0SK0S and Cabibbo-favored Λ+c→pK0Sη based on 980 fb−1 data collected by the Belle detector, operating at KEKB energy-asymmetric e+e− collider. measure their branching fractions relative to Λ+c→pK0S: B(Λ+c→pK0SK0S)/B(Λ+c→pK0S)=(1.48±0.08±0.04)×10−2 B(Λ+c→pK0Sη)/B(Λ+c→pK0S)=(2.73±0.06±0.13)×10−1. Combining with world average B(Λ+c→pK0S), we have absolute fractions, B(Λ+c→pK0SK0S)=(2.35±0.12±0.07±0.12)×10−4...
Using the data sample of 980 fb−1 collected with Belle detector operating at KEKB asymmetric-energy e+e− collider, we present results an investigation Λπ+ and Λπ− invariant mass distributions looking for substructure in decay Λ+c→Λπ+π+π−. We find a significant signal each distribution. When interpreted as resonances, (Λπ−) combination 1434.3±0.6(stat)±0.9(syst) MeV/c2 [1438.5±0.9(stat)±2.5(syst) MeV/c2], intrinsic width 11.5±2.8(stat)±5.3(syst) [33.0±7.5(stat)±23.6(syst) MeV/c2] significance...
The processes e+e−→Σ0¯Σ0 and e+e−→Σ+¯Σ− are studied using initial-state-radiation events in a sample of 980 fb−1 collected with the Belle detector at KEKB asymmetric-energy e+e− collider. cross sections from mass threshold to 3 GeV/c2 effective form factors Σ0 Σ+ measured. In charmonium region, we observe decays J/ψ→Σ0¯Σ0 J/ψ→Σ+¯Σ− determine respective branching fractions.8 MoreReceived 31 October 2022Accepted 28 March 2023DOI:https://doi.org/10.1103/PhysRevD.107.072008Published by American...
We present the results of first Dalitz plot analysis decay ${D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}\ensuremath{\eta}$. The is performed on a data set corresponding to an integrated luminosity $953\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected by Belle detector at asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ KEKB collider. well described combination six resonant channels ${\overline{K}}^{*}(892{)}^{0}\ensuremath{\eta}$,...
We search for the baryon and lepton number violating charm decays, <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mi>D</a:mi><a:mo stretchy="false">→</a:mo><a:mi>p</a:mi><a:mo>ℓ</a:mo></a:mrow></a:math>, where <d:math xmlns:d="http://www.w3.org/1998/Math/MathML" display="inline"><d:mi>D</d:mi></d:math> is either a <f:math xmlns:f="http://www.w3.org/1998/Math/MathML" display="inline"><f:msup><f:mi>D</f:mi><f:mn>0</f:mn></f:msup></f:math> or <h:math...
We report a search for heavy neutral lepton (HNL) that mixes predominantly with <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>ν</a:mi><a:mi>τ</a:mi></a:msub></a:math>. The utilizes data collected the Belle detector at KEKB asymmetric energy <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> collider. sample was and just below...
We measure the complete set of angular coefficients <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>J</a:mi><a:mi>i</a:mi></a:msub></a:math> for exclusive <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:mrow><c:mover accent="true"><c:mrow><c:mi>B</c:mi></c:mrow><c:mrow><c:mo stretchy="false">¯</c:mo></c:mrow></c:mover><c:mo...
We report a measurement of time-dependent $CP$ violation parameters in ${B}^{0}\ensuremath{\rightarrow}{K}_{S}^{0}\ensuremath{\eta}\ensuremath{\gamma}$ decays. The study is based on data sample, containing $772\ifmmode\times\else\texttimes\fi{}{10}^{6}B\overline{B}$ pairs, that was collected at the $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance with Belle detector KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. obtain...
We report the measurement of $e^+e^- \to D^+_sD^*_{s2}(2573)^-+c.c.$ via initial-state radiation using a data sample an integrated luminosity 921.9 fb$^{-1}$ collected with Belle detector at $\Upsilon(4S)$ and nearby. find evidence for enhancement 3.4$\sigma$ significance in invariant mass $D^+_sD^*_{s2}(2573)^- +c.c.$ The measured width are $(4619.8^{+8.9}_{-8.0}({\rm stat.})\pm2.3({\rm syst.}))~{\rm MeV}/c^{2}$ $(47.0^{+31.3}_{-14.8}({\rm stat.})\pm4.6({\rm MeV}$, respectively. mass,...
We search for $CP$ violation in the charged charm meson decay ${D}^{+}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{0}$, based on a data sample corresponding to an integrated luminosity of $921\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected by Belle experiment at KEKB ${e}^{+}{e}^{\ensuremath{-}}$ asymmetric-energy collider. The measured $CP$-violating asymmetry is...
We study bottomonium production in association with an $$\eta $$ meson $$e^+e^-$$ annihilations near the $$\varUpsilon (5S)$$ , at a centre-of-mass energy of $$\sqrt{s}=10.866$$ GeV. The results are based on 121.4 fb $$^{-1}$$ data sample collected by Belle experiment asymmetric-energy KEKB collider. Only is reconstructed and missing-mass spectrum candidates investigated. observe $$e^+e^-\rightarrow \eta \varUpsilon _J(1D)$$ process find evidence for (2S)$$ process, while no significant...
Using the entire data sample of 980 fb−1 collected at or near Υ(4S) resonance with Belle detector operating KEKB asymmetric-energy e+e− collider, we report measurement mass, width, and branching ratios Λc(2625)+ charmed baryon. The mass difference between Λ+c is measured to be M(Λc(2625)+)−M(Λ+c)=341.518±0.006±0.049 MeV/c2. upper limit on width Γ(Λc(2625)+)<0.52 MeV/c2 90% confidence level. Based a full Dalitz plot fit, respect mode Λc(2625)+→Λ+cπ+π− are...