C. P. Shen
A5055815053- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Black Holes and Theoretical Physics
- Computational Physics and Python Applications
- Particle Detector Development and Performance
- Particle Accelerators and Free-Electron Lasers
- Nuclear physics research studies
- Atomic and Subatomic Physics Research
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Advanced NMR Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Cosmology and Gravitation Theories
- Atomic and Molecular Physics
- Distributed and Parallel Computing Systems
- Cold Atom Physics and Bose-Einstein Condensates
- advanced mathematical theories
- Scientific Research and Discoveries
- Astrophysics and Cosmic Phenomena
- Advanced Algebra and Geometry
- Advanced Optical Sensing Technologies
- Lanthanide and Transition Metal Complexes
Baoji University of Arts and Sciences
2024-2025
Institute of High Energy Physics
2014-2024
Fudan University
2009-2024
Institute of Modern Physics
2019-2024
Henan Normal University
2023-2024
Henan University
2023
Inner Mongolia University
2023
Beijing Children’s Hospital
2023
Capital Medical University
2023
University of Groningen
2023
The cross section for ee+ e- → π+ π- J/ψ between 3.8 and 5.5 GeV is measured with a 967 fb(-1) data sample collected by the Belle detector at or near Υ(nS) (n = 1,2,…,5) resonances. Y(4260) state observed, its resonance parameters are determined. In addition, an excess of production around 4 observed. This feature can be described Breit-Wigner parametrization properties that consistent Y(4008) was previously reported Belle. study decays, structure observed in M(π(±)J/ψ) mass spectrum 5.2σ...
The Collins effect connects transverse quark spin with a measurable azimuthal asymmetry in the yield of hadronic fragments around quark's momentum vector. Using two different reconstruction methods we measure statistically significant asymmetries for charged pion pairs ${e}^{+}{e}^{\ensuremath{-}}$ annihilation at center-of-mass energies 10.52 GeV and 10.58 GeV, which can be attributed to fragmentation primordial quarks components. measurement was performed using data set $547\text{ }\text{...
The cross sections for ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\phi}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ and ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\phi}{f}_{0}(980)$ are measured from threshold to $\sqrt{s}=3.0\text{ }\text{ }\mathrm{GeV}$ using initial-state radiation. analysis is based on a data sample of $673\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected below the $\ensuremath{\Upsilon}(4S)$ resonance with Belle...
Investigating organic reactions to synthesize novel molecules that exhibit aggregation-induced emission (AIE) characteristics is becoming a research hotspot. Herein, we develop one-pot phosphinylation/cyclization reaction between propynolaldehydes and diarylphosphine oxides...
N-linked glycosylation is prevalent in proteins destined for extracellular environments; nearly all secreted are glycosylated. However, with respect to their sites, little attention has been paid. Here, we report the analysis of N-glycosylation sites on human hepatocellular carcinoma cells. For enrichment glycopeptides, capture methods hydrophilic affinity (HA) and hydrazide chemistry (HC) were used complementarily. With use both combination nano-LC-ESI-MS/MS analysis, 300 different within...
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...
The differential cross section for the process $\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}\ensuremath{\eta}{\ensuremath{\pi}}^{0}$ has been measured in kinematic range $0.84\text{ }\text{ }\mathrm{GeV}<W<4.0\text{ }\mathrm{GeV}$, $|\mathrm{cos}{\ensuremath{\theta}}^{*}|<0.8$, where $W$ and ${\ensuremath{\theta}}^{*}$ are energy ${\ensuremath{\pi}}^{0}$ (or $\ensuremath{\eta}$) scattering angle, respectively, $\ensuremath{\gamma}\ensuremath{\gamma}$ center-of-mass system....
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 cross section for e^+e^- \to \eta J/\psi between \sqrt{s}=3.8 GeV/c^2 and 5.3 is measured via initial state radiation using 980 fb^{-1} of data on around the \Upsilon(nS)(n=1,2,3,4,5) resonances collected with Belle detector at KEKB. Two resonant structures \psi(4040) \psi(4160) are observed in invariant mass distribution. Fitting spectrum coherent sum two Breit-Wigner functions, one obtains BR(\psi(4040)\to\eta J/\psi)\cdot\Gamma_{ee}^{\psi(4040)} = (4.8\pm0.9\pm1.4) eV...
We present the first measurements of absolute branching fractions ${\mathrm{\ensuremath{\Xi}}}_{c}^{0}$ decays into ${\mathrm{\ensuremath{\Xi}}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, $\mathrm{\ensuremath{\Lambda}}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, and $p{K}^{\ensuremath{-}}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ final states. The are made using a dataset comprising $(772\ifmmode\pm\else\textpm\fi{}11)\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected...
We present the study of B[over ¯]^{0}→Σ_{c}(2455)^{0,++}π^{±}p[over ¯] decays based on 772×10^{6} BB[over events collected with Belle detector at KEKB asymmetric-energy e^{+}e^{-} collider. The Σ_{c}(2455)^{0,++} candidates are reconstructed via their decay to Λ_{c}^{+}π^{∓} and Λ_{c}^{+} pK^{-}π^{+}, pK_{S}^{0}, Λπ^{+} final states. corresponding branching fractions measured be B(B[over ¯]^{0}→Σ_{c}(2455)^{0}π^{+}p[over ¯])=(1.09±0.06±0.07)×10^{-4} ¯]^{0}→Σ_{c}(2455)^{++}π^{-}p[over...
A highly efficient method for the straightforward synthesis of skipped 1,4-dienes is presented via p-TsOH•H2O-catalyzed intramolecular intercepted Meyer-Schuster rearrangement/allylic alkenylation propynolaldehydes with olefins in a one-pot manner. This cascade...
The last few years have been witness to a proliferation of new results concerning heavy exotic hadrons. Experimentally, many signals discovered that could be pointing towards the existence tetraquarks, pentaquarks, and other configurations quarks gluons. Theoretically, advances in lattice field theory techniques place us at cusp understanding complex coupled-channel phenomena, modelling grows more sophisticated, effective theories are being applied an ever greater range situations. It is...
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...
Using data samples of 89.5 and $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ recorded at energies $\sqrt{s}=10.52$ 10.58 GeV, respectively, with the Belle detector KEKB ${e}^{+}{e}^{\ensuremath{-}}$ collider, we report measurements branching fractions semileptonic decays ${\mathrm{\ensuremath{\Xi}}}_{c}^{0}\ensuremath{\rightarrow}{\mathrm{\ensuremath{\Xi}}}^{\ensuremath{-}}{\ensuremath{\ell}}^{+}{\ensuremath{\nu}}_{\ensuremath{\ell}}$ ($\ensuremath{\ell}=e$ or $\ensuremath{\mu}$)...
We present the first observation of ${\mathrm{\ensuremath{\Omega}}}_{c}^{0}\ensuremath{\rightarrow}{\mathrm{\ensuremath{\Omega}}}^{\ensuremath{-}}{\ensuremath{\mu}}^{+}{\ensuremath{\nu}}_{\ensuremath{\mu}}$ decay and measurements branching fraction ratios ${\mathrm{\ensuremath{\Omega}}}_{c}^{0}\ensuremath{\rightarrow}{\mathrm{\ensuremath{\Omega}}}^{\ensuremath{-}}{\ensuremath{\ell}}^{+}{\ensuremath{\nu}}_{\ensuremath{\ell}}$ decays compared to reference mode...