A5091491588- Nuclear physics research studies
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Nuclear Physics and Applications
- Radiation Detection and Scintillator Technologies
- Atomic and Molecular Physics
- Advanced NMR Techniques and Applications
- Particle Detector Development and Performance
- High-Energy Particle Collisions Research
- Electrical and Thermal Properties of Materials
- X-ray Spectroscopy and Fluorescence Analysis
- Nuclear reactor physics and engineering
- Dark Matter and Cosmic Phenomena
- Particle accelerators and beam dynamics
- Dielectric materials and actuators
- Particle Accelerators and Free-Electron Lasers
- Gas Sensing Nanomaterials and Sensors
- Radioactive Decay and Measurement Techniques
- Color perception and design
- Atomic and Subatomic Physics Research
- Radiopharmaceutical Chemistry and Applications
- Advanced Sensor Technologies Research
- Astronomical and nuclear sciences
- Global Public Health Policies and Epidemiology
- Scientific Research and Discoveries
Xi'an Physical Education University
2024
Beijing Institute of Fashion Technology
2024
Chinese Academy of Sciences
2012-2023
Institute of Modern Physics
2012-2023
South China University of Technology
2022
Johannes Gutenberg University Mainz
2018-2020
Helmholtz Institute Mainz
2019-2020
Forschungszentrum Jülich
2013-2016
Lanzhou University
2015
University of Chinese Academy of Sciences
2013-2015
We propose a novel approach to measure spin polarization of nucleons produced in electron--positron collisions. Using existing tracking devices and supporting structure material, general-purpose spectrometers can be utilized as large-acceptance polarimeter without hardware upgrade. With the proposed approach, revealed, providing complementary accurate description final-state particles. This could have far-reaching implications, such enabling complete determination time-like electromagnetic...
The elastic scattering of ${}^{8}$B by a ${}^{\mathrm{nat}}$Pb target was measured at an incident energy 170.3 MeV. Special care taken with the limited intensity and broad profile secondary beam. angular distribution differential cross section shows that Coulomb-nuclear interference peak (CNIP) is not suppressed in this system, contrast to what observed neutron halo nuclei heavy targets energies around Coulomb barrier. Analyses were performed both terms optical model using...
This paper describes a time-marking system that enables measurement of the in-plane (horizontal) polarization 0.97-GeV/c deuteron beam circulating in Cooler Synchrotron (COSY) at Forschungszentrum J\"ulich. The clock time each polarimeter event is used to unfold 120-kHz spin precession and assign events bins according direction horizontal polarization. After accumulation for one or more seconds, down-up scattering asymmetry can be calculated matched sinusoidal function whose magnitude...
The Super $τ$-Charm facility (STCF) is an electron-positron collider proposed by the Chinese particle physics community. It designed to operate in a center-of-mass energy range from 2 7 GeV with peak luminosity of $0.5\times 10^{35}{\rm cm}^{-2}{\rm s}^{-1}$ or higher. STCF will produce data sample about factor 100 larger than that present factory -- BEPCII, providing unique platform for exploring asymmetry matter-antimatter (charge-parity violation), in-depth studies internal structure...
We report on measurements of the differential cross section $d\ensuremath{\sigma}/d\mathrm{\ensuremath{\Omega}}$ and first measurement analyzing power ${A}_{y}$ in $\mathrm{\ensuremath{\Delta}}(1232)$ excitation energy region reaction $pp\ensuremath{\rightarrow}{{pp}}_{s}{\ensuremath{\pi}}^{0}$ where ${{pp}}_{s}$ is a $^{1}S_{0}$ proton pair. The experiment has been performed with ANKE spectrometer at COSY-J\"ulich. data reveal peak dependence forward section, minimum zero degrees its...
The proton analysing power in $\vec{p}p$ elastic scattering has been measured at small angles COSY-ANKE 796 MeV and five other beam energies between 1.6 2.4 GeV using a polarised beam. asymmetries obtained by detecting the fast ANKE forward detector or slow recoil silicon tracking telescope are completely consistent. Although results agree well with many published data MeV, also most recent partial wave solution this energy, higher lie above predictions of angles. An updated phase shift...
An antisymmetrized molecular dynamics model (AMD-FM), modified to take into account the Fermi motion explicitly in its nucleon-nucleon collision process, is presented. Calculated high-energy proton spectra are compared with those of $^{40}\mathrm{Ar}+^{51}\mathrm{V}$ at 44 MeV/nucleon from Coniglione et al. [Phys. Lett. B 471, 339 (2000)] and $^{36}\mathrm{Ar}+^{181}\mathrm{Ta}$ 94 Germain [Nucl. Phys. A 620, 81 (1997)]. Both experimental data reasonably well reproduced by newly added boost...
We report on a new measurement of the beam transverse single spin asymmetry in electron-proton elastic scattering, A_{⊥}^{ep}, at five energies from 315.1 to 1508.4 MeV and scattering angle 30°<θ<40°. The covered Q^{2} values are 0.032, 0.057, 0.082, 0.218, 0.613 (GeV/c)^{2}. clearly indicates significant inelastic contributions two-photon-exchange (TPE) amplitude low-Q^{2} kinematic region. No theoretical calculation is able reproduce our result. Comparison with based unitarity, which only...
Angular distributions for the elastic scattering of 7Be and 8B by an enriched 208Pb target were measured at Radioactive Ion Beam Line Lanzhou (RIBLL). The incident energies radioactive beams about three times respective Coulomb barriers. A suppressed Coulomb-nuclear Interference Peak (CNIP) is not observed 8B, a pronounced proton halo nucleus. Optical model fits performed using Woods-Saxon potentials total reaction cross sections deduced. results are discussed.
The differential cross section for proton-proton elastic scattering has been measured at a beam energy of 1.0 GeV and in 200 MeV steps from 1.6 to 2.8 centre-of-mass angles the range 12-16 degrees 25-30 degrees, depending on energy. Absolute normalisations typically 3% were achieved by studying losses circulating COSY storage ring as it passed repeatedly through windowless hydrogen target ANKE magnetic spectrometer. It is shown that data have significant impact upon partial wave analysis....
Values of the proton analysing power in $pd\to{}^{3}\textrm{He}\,\pi^0/^{3}\textrm{H}\,\pi^+$ reactions at 350-360~MeV per nucleon were obtained by using a polarised beam incident on deuterium cluster-jet target and with deuteron cell filled hydrogen. These results have much larger angular coverage than existing data. First measurements are also presented vector deuteron-proton spin correlations. Data correlation small angles 600~MeV nucleon, though this energy was more restricted even when...
The vector and tensor analysing powers, Ay Ayy, of the pd→→n{pp}s charge-exchange reaction have been measured at a beam energy 600 MeV COSY-ANKE facility by using an unpolarised proton incident on internal storage cell target filled with polarised deuterium gas. low recoiling protons were in pair silicon tracking telescopes placed either side target. Putting cut 3 diproton excitation ensured that two dominantly S01 state, here denoted {pp}s. polarisation gas was established through...
Currently, sports venues are endowed with the important functions of providing and facilities to urban public, watching events, publicizing mass culture, etc. An in-depth study how enhance attractiveness venue buildings competitiveness industry stimulate public’s potential for consumption is necessary. Based on perspective color psychology, this constructs a three-level structural equation model based nested data obtained from questionnaire survey explore relationship between managers’...
China faces a critical public health challenge with obesity rates exceeding 50% among adults and 20% children. In response, the National Health Commission launched comprehensive three-year "Year of Weight Management" initiative in March 2024, further emphasized by 36th Patriotic Month's theme "Healthy Towns - Healthy Weight" April 2024. These initiatives underscore urgent necessity for implementing strategies to combat its associated non-communicable diseases. To catalyze these national...