A5063790807- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Nuclear Physics and Applications
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Distributed and Parallel Computing Systems
- Radiation Detection and Scintillator Technologies
- Advancements in Battery Materials
- Nuclear physics research studies
- High-pressure geophysics and materials
- Scientific Computing and Data Management
- Big Data Technologies and Applications
- Advanced Data Storage Technologies
- Advanced Battery Materials and Technologies
- Glass properties and applications
- Dark Matter and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Seismic Imaging and Inversion Techniques
- X-ray Diffraction in Crystallography
- Neutrino Physics Research
- Magnetic Properties and Synthesis of Ferrites
- Cannabis and Cannabinoid Research
- Covalent Organic Framework Applications
- Scientific Research and Discoveries
Institute of High Energy Physics
2012-2024
East China Normal University
2024
University of Chinese Academy of Sciences
2009-2024
China Aerospace Science and Industry Corporation (China)
2024
China Spallation Neutron Source
2016-2022
Chinese Academy of Sciences
2009-2022
Nagoya University
2011
Petersburg Nuclear Physics Institute
2011
China Center of Advanced Science and Technology
2011
Guangxi Normal University
2011
This paper focuses mainly on the vertex reconstruction of resonance particles with a relatively long lifetime such as K0S, Λ, well measurements using 3-dimensional fit. The kinematic constraints between production and decay vertices fitting algorithm based least squares method are both presented. Reconstruction efficiencies including experimental resolutions discussed. results systematic errors calculated Monte Carlo simulation.
According to the estimated data rates, it is predicted that 24 PB raw experimental will be produced per month from 14 beamlines at first stage of High-Energy Photon Source (HEPS) in China, and volume even greater with completion over 90 second future. To make sure huge amount collected HEPS accurate, available accessible, an effective management system (DMS) crucial for deploying IT systems. In this article, a DMS designed which responsible automating organization, transfer, storage,...
The cubic phase of Li 7 La 3 Zr 2 O 12 shows fast diffusion the lithium ions. Combining total scattering measurements analysed by RMC method with molecular dynamics simulations gives a detailed picture distribution +
In order to overcome the difficulty brought by circling charged tracks with transverse momentum less than 120 MeV in BESIII Main Drift Chamber (MDC), a specialized method called TCurlFinder was developed. This tracking focuses on track reconstruction under and possesses special mechanism reject background noise hits. The performance of package has been carefully checked tuned both Monte Carlo data real data. study shows that this could obviously enhance efficiency low region, providing...
Small-angle neutron scattering (SANS) is used to characterize material structures in the nanometer micrometer range. The solution of structural model constructed from SANS strongly depends on accuracy reduced data. time-of-flight (TOF) measurements are dependent wavelength pulsed source. Therefore, data reduction must be handled carefully transform measured events into intensities. In this study, algorithms for TOF were developed and optimized using simulated virtual neutrons. Each possible...
We report results from a study of the crystal and magnetic structures strontium-doped BiFeO3using neutron powder diffraction Rietveld method. Measurements were obtained over wide range temperatures 300-800 K for compositions between 10%-16% replacement bismuth by strontium. The show clear variation two main structural deformations-symmetry-breaking rotations FeO6octahedra polar ionic displacements that give ferroelectricity-with chemical composition, but relatively little with temperature....
Daisy (Data Analysis Integrated Software System) has been designed for the analysis and visualisation of X-ray experiments. To address requirements Chinese radiation facilities community, spanning an extensive range from purely algorithmic problems to scientific computing infrastructure, sets up a cloud-native platform support on-site data services with fast feedback interaction. Furthermore, plug-in based application is convenient process expected high throughput flow in parallel at...
The principle of the method for BESIII TOF calibration using cosmic ray data without magnetic field are reported in this paper. After applying constants, single-end readout time resolution could reach about 150 ps, and one layer is achieved to be 110 ps. paper also described extraction scheme event start events.
Correction for ‘Local structure and lithium-ion diffusion pathway of cubic Li 7 La 3 Zr 2 O 12 studied by total scattering the Reverse Monte Carlo method’ Haolai Tian et al. , J. Mater. Chem. A 2023, 11 25516–25533, https://doi.org/10.1039/D3TA04495E.
The reconstruction algorithm for BESIII Muon Counter, MucRecAlg, is developed with the object-oriented language C++ in offline software environment. MucRecAlg consists of following functions: to find track seeds either from extrapolation tracks main drift chamber or fired strips muon counter, select associated candidate tracks, fit a linear quadratic function and calculate other parameters identification. Monte Carlo samples are generated check performance package, such as efficiency,...
Cosmic-ray data of 90 M events have been collected and used for calibration, alignment as well detector tuning. A special tracking algorithm the BESIII muon counter is developed verified with Monte–Carlo simulation then further confirmed cosmic-ray data. The obtained strip resolutions are in good agreement design values. new approach proposed to be future analysis experimental
High Energy Photon Source(HEPS) Experiment is expected to produce large amount of data and have diverse computing requirements for analysis. Generally, scientists need spend several days setup their experimental environment, which greatly reduce the scientists’ work efficiency. In response above problems, we introduce a remote analysis system HEPS. The provides users web-based interactive interface based Jupyter, makes are able process anytime anywhere. Particularly, discuss architecture as...
In the search for stable materials with high porosity, attention has moved toward atomic networks that utilize molecular linkages. PAF-1, linkages of biphenyl moieties, forms an amorphous network phenomenal porosity and stability. Until now there still been no clear picture its structure. We report here on a study using both neutron scattering dynamics simulation methods. demonstrate PAF-1 continuous random network, in which tetrahedral carbon sites are connected by linkers. The simulations...
We use in situ high-pressure neutron powder diffraction to study elastic properties of Fe3O4 magnetite nanoparticles different sizes. It is found that are elastically softer than the bulk. Apart from smallest nanoparticle diameter 8 nm, atomic and magnetic structures do not change significantly with size or pressure. The nm sample appears take a disordered spinel structure instead inverse bulk larger nanoparticles, as seen bond lengths structures. Synchrotron x-ray total scattering was used...
Daisy (Data Analysis Integrated Software System) has been designed for the analysis and visualisation of data from synchrotron radiation facility other scientific facilities hosted by Institute High Energy Physics (IHEP). To address requirements Chinese community, spanning an extensive range purely algorithmic problems to computing infrastructure, sets up a cloud-native platform support on-site services with fast feedback interaction. Furthermore, plug-in based application is convenient...