A5084580854- Nuclear physics research studies
- Nuclear Physics and Applications
- Particle physics theoretical and experimental studies
- Astronomical and nuclear sciences
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Atomic and Molecular Physics
- Particle Detector Development and Performance
- Neutrino Physics Research
- Nuclear reactor physics and engineering
- Advanced NMR Techniques and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- GaN-based semiconductor devices and materials
- Advanced Chemical Physics Studies
- Gamma-ray bursts and supernovae
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- X-ray Diffraction in Crystallography
- Semiconductor Quantum Structures and Devices
- Particle accelerators and beam dynamics
- Crystallization and Solubility Studies
- Astro and Planetary Science
- ZnO doping and properties
- Stellar, planetary, and galactic studies
- Metal and Thin Film Mechanics
Xinjiang Production and Construction Corps
2025
Hangzhou Normal University
2025
Hangzhou Women’s Hospital
2025
Anshun University
2024
Sun Yat-sen University
2023-2024
Guangxi Normal University
2024
Beijing Normal University
2019-2024
China Institute of Atomic Energy
2014-2023
Beijing Academy of Science and Technology
2022-2023
Beijing Radiation Center
2021-2022
We present a new measurement of the α-spectroscopic factor (Sα) and asymptotic normalization coefficient for 6.356 MeV 1/2+ subthreshold state 17O through 13C(11B, 7Li)17O transfer reaction we determine α-width this state. This is believed to have strong effect on rate 13C(α, n)16O reaction, main neutron source slow captures (the s-process) in giant branch (AGB) stars. Based width derive astrophysical S-factor stellar reaction. At temperature 100 MK, our roughly two times larger than that by...
Fluorine is one of the most interesting elements in nuclear astrophysics, where ^{19}F(p,α)^{16}O reaction crucial importance for Galactic ^{19}F abundances and CNO cycle loss first generation Population III stars. As a day-one campaign at Jinping Underground Nuclear Astrophysics experimental facility, we report direct measurements essential ^{19}F(p,αγ)^{16}O channel. The γ-ray yields were measured over E_{c.m.}=72.4-344 keV, covering Gamow window; our energy 72.4 keV unprecedentedly low,...
Abstract We present a precise measurement of the asymptotic normalization coefficient (ANC) for 16 O ground state (GS) through 12 C( 11 B, 7 Li) transfer reaction using Quadrupole‐3‐Dipole (Q3D) magnetic spectrograph. The work sheds light on existing discrepancy more than 2 orders magnitude between previously reported GS ANC values. This is believed to have strong effect α , γ ) rate by constraining external capture state, which can interfere with high-energy tail + subthreshold state. Based...
Background: We investigated the key factors that influence awareness, health beliefs, and self-efficacy of osteoporosis among staff an obstetrics gynecology hospital to identify target population for carrying out education promotion in medical institutions, hoping improve women's awareness prevention treatment consciousness from source. Methods: A cross-sectional study was conducted October 15 24 2023, 200 members were randomly sampled Hangzhou city a questionnaire survey. used quantile...
Understanding human behavior and society is a central focus in social sciences, with the rise of generative science marking significant paradigmatic shift. By leveraging bottom-up simulations, it replaces costly logistically challenging traditional experiments scalable, replicable, systematic computational approaches for studying complex dynamics. Recent advances large language models (LLMs) have further transformed this research paradigm, enabling creation human-like agents realistic...
ABSTRACT Calculating evaporation loss rates of surface water poses a significant challenge in remote regions, where meteorological data are scarce. To address this challenge, our study has adopted stable isotope tracers to determine the within Manas River Basin. Utilizing composition and precipitation from April October 2023 basin, aimed estimate using Craig–Gordon model Rayleigh fractionation across mountainous plain regions. The local meteoric line smaller slope intercept than global line,...
The $^{12}\mathrm{C}(\ensuremath{\alpha},\ensuremath{\gamma})^{16}\mathrm{O}$ reaction is one of the most crucial reactions in nuclear astrophysics. $E2$ external capture to $^{16}\mathrm{O}$ ground state (GS) has not been emphasized previous analyses but may make a significant contribution cross section depending on value GS asymptotic normalization coefficient (ANC). In present work, we determine this ANC be $337\ifmmode\pm\else\textpm\fi{}45\text{ }\text{...
The ^{18}O(α,γ)^{22}Ne reaction is critical for AGB star nucleosynthesis due to its connection the abundances of several key isotopes, such as ^{21}Ne and ^{22}Ne. However, ambiguous resonance energy spin-parity dominant 470 keV leads substantial uncertainty in rate temperature interest. We have measured energies strengths low-energy resonances at Jinping Underground Nuclear Astrophysics experimental facility (JUNA) with improved precision. has been be E_{α}=474.0±1.1 keV, high precision...
The $^{12}\mathrm{C}(\ensuremath{\alpha},\ensuremath{\gamma})^{16}\mathrm{O}$ reaction substantially influences the abundance ratios of main isotopes carbon and oxygen hence has been regarded as holy grail in nuclear astrophysics. Its importance lies fact that it significantly affects yield key elements plays a crucial role study mass gap black holes. This reaction's cross section is greatly influenced by subthreshold state 7.117-MeV ${1}^{\ensuremath{-}}$ $^{16}\mathrm{O}$, which...
The $^8$Li($n,γ$)$^9$Li reaction plays an important role in both the r-process nucleosynthesis and inhomogeneous big bang models, its direct capture rates can be extracted from $^8$Li($d, p$)$^9$Li reaction, indirectly. We have measured angular distribution of p$)$^9$Li$_{\textrm{g.s.}}$ at $E_{\textrm{c.m.}}$ = 7.8 MeV inverse kinematics using coincidence detection $^{9}\textrm{Li}$ recoil proton, for first time. Based on Distorted Wave Born Approximation (DWBA) analysis,...
Background: Fluorine is a key element for nucleosynthetic studies since it extremely sensitive to the physical conditions within stars. The astrophysical site produce fluorine suggested be asymptotic giant branch In these stars 15N(n,γ)16N reaction could affect abundance of by competing with 15N(α,γ)19F. Purpose: rate depends directly on neutron spectroscopic factors low-lying states in 16N. Shell model calculations and two previous measurements (d,p) yielded discrepancy factor ∼2. present...
The T=3/2 isobaric analog state (IAS) in 53Co is firmly established through a comprehensive measurement of β-delayed γ and proton decay 53Ni. determined excitation energy IAS combined with the mass generates precise excess −38333.6(27)keV for IAS, which 70(18) keV lower than previously adopted value. new result solves problem raised by incorrect assignments unexpected deviation from multiplet equation (IMME) at A=53, T=3/2.
$^{13}\mathrm{N}$($p,\ensuremath{\gamma}$)$^{14}\mathrm{O}$ is one of the key reactions in hot CNO cycle which occurs at stellar temperatures around ${T}_{9}\ensuremath{\geqslant}0.1$. Up to now, some uncertainties still exist for direct capture component this reaction, thus an independent measurement importance. In present work, angular distribution $^{13}\mathrm{N}$($d,n$)$^{14}\mathrm{O}$ reaction ${E}_{c.m.}=8.9$ MeV has been measured inverse kinematics, first time. Based on...
The 13C(7Li, 6He) 14 N0,1 reactions were measured at E (7Li) = 34 MeV with the Q3D magnetic spectrometer of HI-13 tandem accelerator, and first peaks angular distributions obtained for time. 14N0,1 proton spectroscopic factors extracted to be 0.67±0.09 0.73±0.10 , respectively. Using 13C(p, γ) 14N direct capture S dc(E) derived by factors, measurement data both 1− 0− resonances well fitted via updating resonance parameters, then total astrophysical S(E) reaction rates determined stellar...