Chun-Hua Jiang
A5001583445- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Pulsars and Gravitational Waves Research
- Neutrino Physics Research
- Black Holes and Theoretical Physics
- Astrophysical Phenomena and Observations
- Astrophysics and Cosmic Phenomena
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Relativity and Gravitational Theory
- Superconducting Materials and Applications
- Experimental and Theoretical Physics Studies
- Distributed and Parallel Computing Systems
- International Science and Diplomacy
- Galaxies: Formation, Evolution, Phenomena
- Atomic and Subatomic Physics Research
- Pediatric Pain Management Techniques
- Geophysics and Gravity Measurements
- Nuclear physics research studies
- Microplastics and Plastic Pollution
Nanjing Maternity and Child Health Care Hospital
2024-2025
Nanjing Medical University
2024-2025
Peking University
2025
North China University of Science and Technology
2025
Institute of High Energy Physics
2014-2024
Institute of High Energy Physics
2011-2024
University of South China
2015-2024
Institute of Mathematics and Mathematical Modeling
2024
A. Alikhanyan National Laboratory
2012-2024
University of Antwerp
2024
We report values of R = sigma(e(+)e(-)-->hadrons)/sigma(e(+)e(-)-->mu(+)mu(-)) for 85 center-of-mass energies between 2 and 5 GeV measured with the upgraded Beijing Spectrometer at Electron-Positron Collider.
Object motion can introduce phase error and thus measurement for phase-shifting profilometry. This paper proposes a generic compensation method based on our finding that the dominant motion-introduced doubles frequency of projected fringe frequency, Hilbert transform shifts pattern by π/2. We apply to phase-shifted patterns generate another set patterns, calculate one map using original transformed then use average these two maps three-dimensional reconstruction. Both simulation experiments...
Metastasis is the primary cause of death in patients with malignant tumors. Therefore, effectively controlling or reversing tumor cell growth and metastasis crucial for treating In this study, we investigated effects underlying mechanisms Binpu-3 (a strain Taraxacum sinicum Kitag., which was cultivated slightly saline-alkali soil) on invasion both Drosophila human breast cancer cells. High-performance liquid chromatography (HPLC) analysis revealed that caftaric, chlorogenic, caffeic,...
Microplastics (MP), defined as plastic particles ranging from 1 to 5000 µm, have become a significant environmental concern due the drastic increase in use. Agricultural soils are highly susceptible MP contamination both direct and indirect sources such plasticulture, biosolids application, irrigation systems, atmospheric deposition. These contaminants disrupt soil physical biological functions, altering porosity, water retention, microbial communities essential for nutrient...
Abstract In this paper, we present the second post-Newtonian solution for quasi-Keplerian motion of a test particle in regular Simpson-Visser black-bounce spacetime which has bounce parameter $a$. The obtained is formulated terms orbital energy, angular momentum, and black hole. We explicitly analyze leading effects parameter, dimensions length, on particle's orbit, including periastron advance period. Then, apply model to precessing OJ 287 determine upper limits dimensionless as $a/m...
An enhancement near the mp+MΛ mass threshold is observed in combined pΛ¯ and p¯Λ invariant-mass spectrum from J/ψ→pK−Λ¯+c.c. decays. It can be fit with an S-wave Breit-Wigner resonance a m=2075±12(stat)±5(syst) MeV width of Γ=90±35(stat)±9(syst) MeV; it also P-wave resonance. Evidence for similar ψ′→pK−Λ¯+c.c. The analysis based on samples 5.8×107J/ψ 1.4×107ψ′ decays accumulated BES II detector at Beijing Electron-Positron Collider.Received 19 May...
The $\pi N$ system in decays of $J/\psi\to\bar NN\pi$ is limited to be isospin 1/2 by conservation. This provides a big advantage studying $N^*\to \pi compared with and $\gamma experiments which mix 3/2 for the system. Using 58 million $J/\psi$ collected Beijing Electron Positron Collider, more than 100 thousand $J/\psi \to p \pi^- \bar n + c.c.$ events are obtained. Besides two well known $N^*$ peaks at 1500 MeV 1670 MeV, there new, clear $p\pi$ invariant mass spectrum around 1360 2030 MeV....
We present an exact and close-form harmonic metric for Kerr-Newman black hole, demonstrate it is unique in the coordinates.Received 3 February 2014DOI:https://doi.org/10.1103/PhysRevD.89.087502© 2014 American Physical Society
We have searched for resonances in the reaction ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\mathrm{hadrons}, \ensuremath{\gamma}\ensuremath{\gamma}, \ensuremath{\mu}\ensuremath{\mu}, \mathrm{and} \mathrm{ee}$, energy range $39.79<\sqrt{s}<45.52$ GeV, using Mark J detector at PETRA. obtain stringent upper limits on production of toponium and particles postulated to explain ${Z}^{0}\ensuremath{\rightarrow}\mathrm{lepton}\mathrm{pair}+\ensuremath{\gamma}$ events observed CERN...
Using a sample of 14×106 ψ(2S) events accumulated with the BES II detector, evidence for f0(980)f0(980) production in χc0 decays is obtained first time; branching ratio determined to be B[χc0→f0(980)f0(980)→π+π−π+π−]=[7.6±1.9 (stat)±1.6 (syst)]×10−4. The significance f0(980) signal about 4.6σ.Received 28 June 2004DOI:https://doi.org/10.1103/PhysRevD.70.092002©2004 American Physical Society
The processes $\ensuremath{\psi}(2S)\ensuremath{\rightarrow}\ensuremath{\gamma}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$, $\ensuremath{\gamma}{K}^{+}{K}^{\ensuremath{-}}$, and $\ensuremath{\gamma}p\overline{p}$ have been studied using a sample of $3.79\ifmmode\times\else\texttimes\fi{}{10}^{6}\ensuremath{\psi}(2S)$ decays. We determine the total width ${\ensuremath{\chi}}_{c0}$ to be...
The process J/ψ--> p \bar{p} is studied using 57.7 X 10^6 J/ψevents collected with the BESII detector at Beijing Electron Positron Collider. branching ratio determined to be Br(J/ψ--> \bar{p})=(2.26 +- 0.01 0.14) 10^{-3}, and angular distribution well described by \frac{dN}{d cosθ_p}=1+α\cos^2θ_p α= 0.676 0.036 0.042, where θ_p angle between proton beam directions. value of αobtained in good agreement predictions first-order QCD.
The second-order post-Newtonian solution for the light propagation in field of Kerr-Newman black hole is achieved via an iterative method. Based on this result, we further obtain deflection spacetime, which formulated united form any arbitrarily incident directions. All results are exhibited coordinate system constituted by initial light-direction vector, impact and their cross-product.
KS0KL0 from ψ′′ decays is searched for using the data collected by BESII at BEPC, and upper limit of branching fraction determined to be B(ψ′′→KS0KL0)<2.1×10−4 90% C.L. The measurement compared with prediction S- D-wave mixing model charmonia, based on measurements fractions J/ψ→KS0KL0 ψ′→KS0KL0.Received 12 August 2004DOI:https://doi.org/10.1103/PhysRevD.70.077101©2004 American Physical Society
A single dose of epidural hydromorphone has been suggested as an alternative method for providing analgesia after caesarean section (CS). Nevertheless, the optimal dosage postoperative pain relief following CS yet to be determined.