A5103157040- Nuclear physics research studies
- Nuclear Physics and Applications
- Quantum Chromodynamics and Particle Interactions
- Combustion and flame dynamics
- Atomic and Molecular Physics
- Fire dynamics and safety research
- Astronomical and nuclear sciences
- Radiation Detection and Scintillator Technologies
- Radiation Shielding Materials Analysis
- Radiation Therapy and Dosimetry
- Particle Detector Development and Performance
- Advanced NMR Techniques and Applications
- Particle Dynamics in Fluid Flows
- Combustion and Detonation Processes
- Fluid Dynamics and Turbulent Flows
- Nuclear reactor physics and engineering
- Advanced Chemical Physics Studies
- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Cyclone Separators and Fluid Dynamics
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Combustion Engine Technologies
- Crystallography and Radiation Phenomena
- Dark Matter and Cosmic Phenomena
Harbin Engineering University
2016-2024
Tsinghua University
2005-2023
Shanghai Jiao Tong University
2007-2023
New York Proton Center
2023
Wuhan University
2023
Ministry of Industry and Information Technology
2021-2022
Harbin University
2022
Peking University
2021
State Key Laboratory of Nuclear Physics and Technology
2021
China Institute of Atomic Energy
2020
Abstract The three‐dimensional (3‐D) strongly swirling turbulent flows in the full space of a volute cyclone separator was measured using laser Doppler velocimetry (LDV), and simulated an improved Reynolds stress equation model by modifying empirical constants isotropization production convection (IPCM) + wall pressure–strain term equation, incorporated into platform FLUENT 6.0. Predicted (RSM) velocities are more reasonable than those obtained previously. specific features separation space,...
An inelastic excitation and cluster-decay experiment $^{2}\mathrm{H}(^{16}\mathrm{C},^{4}\mathrm{He}+^{12}\mathrm{Be}\text{ }\text{or}\text{ }^{6}\mathrm{He}+^{10}\mathrm{Be})^{2}\mathrm{H}$ was carried out to investigate the linear-chain clustering structure in neutron-rich $^{16}\mathrm{C}$. For first time, decay paths from $^{16}\mathrm{C}$ resonances various states of final nuclei were determined, thanks well-resolved $Q$-value spectra obtained threefold coincident measurement. The...
Abstract An invariant-mass spectroscopy has been performed to search for possible resonance states in the loosely-bound neutron-rich 15C nucleus. By detecting alpha and 11Be coincidence, excitation energy spectrum is reconstructed. To estimate physical background from non-resonant prompt particles, a recently proposed weighted event-mixing method with phenomenological reduced weighting at around alpha-decay threshold employed account depletion alpha's contribution due likely Coulomb...
Swirling flows and methane–air swirling diffusion combustion are studied by large-eddy simulation (LES) using a Smagorinsky-Lilly subgrid-scale (SGS) turbulence model, second-order moment (SOM) SGS proposed the present authors, an eddy-break-up (EBU) model used some investigators. The LES statistical results compared with experimental Reynolds-averaged Navier-Stokes (RANS) modeling Reynolds stress equation SOM model. For flows, give better agreement than RANS modeling, indicating that...
Background: Beta-decay spectroscopy provides valuable nuclear physics input for thermonuclear reaction rates of astrophysical interest and stringent test shell-model theories far from the stability line. Purpose: The available decay properties proton drip-line nucleus $^{27}$S is insufficient to constrain key resonance in $^{26}$Si$(p,\gamma)^{27}$P rate probe possible isospin asymmetry. scheme complicated being understood, which has motivated but also presented challenges our experiment....
New measurements of proton/deuteron elastic and inelastic scattering to the ${2}_{1}^{+}$ state neutron-rich nucleus $^{16}\mathrm{C}$ have been performed at Radioactive Ion Beam Line in Lanzhou (RIBLL) inverse kinematics. The angular distributions were well reproduced by systematic optical potential with normalization factors for depths real imaginary parts. neutron proton deformation lengths ${\ensuremath{\delta}}_{n}=1.25\ifmmode\pm\else\textpm\fi{}0.30$ fm...
Abstract The shape and internal structure of an atomic nucleus can change significantly with increasing excitation energy, angular momentum, or isospin asymmetry. As example this structural evolution, linear-chain configurations in carbon heavier isotopes have been predicted for decades. Recent studies found non-stability 12 C while evidenced its appearance 16 C. It is then necessary to investigate the molecular structures 14 clarify exact location on nuclear chart where begins emerge, thus...
Measurements of the 2H(16C,16C∗→4He+12Be or 6He+10Be)2H inelastic excitation and cluster-decay reactions have been carried out at a beam energy about 23.5 MeV/u. A specially designed detection system, including one multilayer silicon-strip telescope around zero degrees, has allowed high-efficiency threefold coincident therefore event-by-event determination unstable nucleus beam. The decay paths from 16C resonances to various states final 10Be 12Be are recognized thanks well-resolved Q-value...
Abstract A methane–air swirling diffusion flame is studied by large-eddy simulation (LES) using second-order moment (SOM) and simplified PDF subgrid-scale (SGS) combustion models, Smagorinsky-Lilly dynamic kinetic energy (DKE) stress models. The predictions are validated the experimental data. For LES statistics, comparison of predicted axial tangential time-averaged root-mean-square (RMS) fluctuation velocities, temperature, RMS CO2 H2O mass fractions with results shows that all SGS models...
The mass of $^{27}$P was predicted to impact the X-ray burst (XRB) model predictions light curves and composition ashes. To address uncertainties inconsistencies in reported masses literature, a wealth information has been extracted from $\beta$-decay spectroscopy drip-line nucleus $^{27}$S. We determine most precise excess date be $-659(9)$~keV, which is 63~keV (2.3$\sigma$) higher than AME2016 recommended value $-722(26)$~keV. experimentally unknown $^{27}$S estimated 17030(400)~keV...
$\beta$ decay of $^{26}$P was used to populate the astrophysically important $E_x=$5929.4(8) keV $J^{\pi}=3{^+}$ state $^{26}$Si. Both $\beta$-delayed proton at 418(8) and gamma ray 1742(2) emitted from this were measured simultaneously for first time with corresponding absolute intensities 11.1(12)\% 0.59(44)\%, respectively. Besides, shell model calculations weakly bound effects performed investigate properties other resonant states a spin-parity $4^+$ rather than $0^+$ favored...
β decay of proton-rich nuclei plays an important role in exploring isospin mixing. The ^{26}P at the proton drip line is studied using double-sided silicon strip detectors operating conjunction with high-purity germanium detectors. T=2 isobaric analog state (IAS) 13 055 keV and two new high-lying states 380 11 912 ^{26}Si are unambiguously identified through β-delayed two-proton emission (β2p). Angular correlations protons emitted from excited populated by measured, which suggests that...
The $\ensuremath{\beta}$-delayed two-proton ($\ensuremath{\beta}2p$) decay of $^{27}\mathrm{S}$ was studied using a state-of-the-art silicon array and Clover-type HPGe detectors. An energy peak at 6372(15) keV with branching ratio 2.4(5)% in the decay-energy spectrum identified as transition via isobaric-analog state $^{27}\mathrm{P}$ to ground $^{25}\mathrm{Al}$ $\ensuremath{\beta}$ $^{27}\mathrm{S}$. Two-proton angular correlations were measured by study mechanism emission. Based on...
A detailed $\ensuremath{\beta}$-decay spectroscopic study of $^{22}\mathrm{Al}$ was performed at the Radioactive Ion Beam Line in Lanzhou. With $\ensuremath{\beta}\text{\ensuremath{-}}\ensuremath{\gamma}$-particle coincidence measurement by a high-resolution DSSD particle detection array and high efficiency $\ensuremath{\gamma}$-ray array, total eight excited states $^{22}\mathrm{Mg}$ fed Gamow-Teller transitions newly identified. The one-proton, two-proton, $\ensuremath{\alpha}$ decays IAS...
The study of the origin asymmetries in mirror β decay is extremely important to understand fundamental nuclear force and structure. experiment was performed at National Laboratory Heavy Ion Research Facility Lanzhou (HIRFL) measure β-delayed γ rays 26P by silicon array Clover-type high-purity Germanium (HPGe) detectors. Combining with results from its nucleus 26Na, asymmetry parameter δ ( ≡ft+/ft−− 1) determined be 46(13)% for transition feeding first excited state daughter nucleus. Our...
We calculate the centrality dependence for coherent photoproduction of very low- <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" id="M2"> <a:msub> <a:mrow> <a:mi>p</a:mi> </a:mrow> <a:mi>T</a:mi> </a:msub> </a:math> <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" id="M3"> <c:mi>J</c:mi> <c:mo>/</c:mo> <c:mi>ψ</c:mi> </c:math> at Relativistic Heavy Ion Collider (RHIC) and Large Hadron (LHC) energies within impact parameter-dependent saturated color dipole model. By using large...