A5071782273- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Nuclear physics research studies
- Particle physics theoretical and experimental studies
- Atomic and Molecular Physics
- Astronomical and nuclear sciences
- Nuclear Physics and Applications
- Black Holes and Theoretical Physics
- Cold Atom Physics and Bose-Einstein Condensates
- Neutrino Physics Research
- Pulsars and Gravitational Waves Research
- Cosmology and Gravitation Theories
- Advanced X-ray Imaging Techniques
- Soil, Finite Element Methods
- Radiation Detection and Scintillator Technologies
- Nuclear reactor physics and engineering
- Soil Mechanics and Vehicle Dynamics
- Medical Imaging Techniques and Applications
- Astrophysical Phenomena and Observations
- Granular flow and fluidized beds
- Quantum, superfluid, helium dynamics
- Stochastic processes and statistical mechanics
- X-ray Spectroscopy and Fluorescence Analysis
- Magnetic confinement fusion research
- Crystallography and Radiation Phenomena
Kunming University
2023
Harbin Engineering University
2021-2022
Institute of Modern Physics
2017-2022
Chinese Academy of Sciences
2017-2022
University of Washington
2019-2021
Ministry of Industry and Information Technology
2021
Tsinghua University
2021
China Institute of Atomic Energy
2020
Yunnan University
2015
We study the photoproduction process of dileptons in heavy‐ion collision at relativistic collider (RHIC) and large hadron (LHC) energies. The equivalent photon approximation, which equates electromagnetic field high‐energy charged particles to flux, is used calculate processes dilepton production. numerical results demonstrate that experimental ultraperipheral collisions feasible RHIC LHC
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....
Based on the factorization formalism of nonrelativistic quantum chromodynamics (NRQCD), we calculate production cross section for charmonium [$J/\ensuremath{\psi}$, $\ensuremath{\psi}(2S)$, ${\ensuremath{\chi}}_{cJ}$, ${\ensuremath{\eta}}_{c}$, and ${h}_{c}$] bottomonium [$\mathrm{\ensuremath{\Upsilon}}(nS)$, ${\ensuremath{\chi}}_{bJ}$, ${\ensuremath{\eta}}_{b}$, ${h}_{b}$] produced by hard photoproduction processes fragmentation in relativistic heavy ion collisions. It is shown that...
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...
We calculate the production cross section for dileptons, photons, and light vector mesons ($\ensuremath{\rho},\phantom{\rule{0.28em}{0ex}}\ensuremath{\omega}$, $\ensuremath{\phi}$) produced by photoproduction processes in relativistic heavy ion collisions. The jet-quenching effects fragmentation with ${p}_{T}>2\phantom{\rule{0.28em}{0ex}}\mathrm{GeV}$ jet-medium interaction ${p}_{T}>4\phantom{\rule{0.28em}{0ex}}\mathrm{GeV}$ fast jets passing through quark-gluon plasma Pb-Pb collisions...
We calculate the production of large-pT charmonium and narrow resonance state (exotic charmonium) in proton–proton, proton–nucleus, nucleus–nucleus collisions with semi-coherent two-photon interactions at Relativistic Heavy Ion Collider (RHIC), Large Hadron (LHC), Future Circular (FCC) energies. Using large quasi-real photon fluxes, we present γγ→H differential cross section for transverse momentum ultra-peripheral heavy ion collisions. The numerical results demonstrate that experimental...
The intensity interferometry is applied as a chronometer of the particle emission hydrogen isotopes from intermediate velocity source formed in 40Ar+197Au reactions at 30 MeV/u. dynamic order τp>τd>τt evidenced via correlation functions nonidentical pairs. Assuming similar size, same inferred identical pairs, where τp≈100fm/c extracted by fit Koonin-Pratt equation to p-p function. Transport model simulations demonstrate that light charged particles depends on stiffness nuclear symmetry energy.
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 photoproduction processes of large transverse momentum (pT) dimuonium (μ+μ−) in AA collisions is calculated. We argue that the modification electromagnetic radiation at (pT > 2 GeV). Through perturbative quantum chromodynamics (pQCD) calculation, we determine production cross section quark-gluon plasma (QGP) RHIC and LHC. numerical results indicate contribution evident relativistic heavy ion energies LHC energies.
Two resonant states above the $^{6}\mathrm{He}+t$ threshold in $^{9}\mathrm{Li}$ have been observed using a beam bombarding $^{208}\mathrm{Pb}$ target at incident energy of 32.7 MeV/nucleon. An angular correlation analysis and continuum discretized coupled channels (CDCC) method applied to identify spin-parities states. The obtained results from present methods calculations indicate first state 9.8 MeV with spin-parity $3/{2}^{\ensuremath{-}}$. second 12.8 limited statistics might suggest...
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 hard photoproduction of light vector meson from fragmentation photon in Pb—Pb collisions. Using perturbative quantum chromodynamics calculation, we rigorously derive electromagnetic production for ρ, ω and φ relativistic nucleus-nucleus collisions by processes. It is shown that differential cross section processes cannot be negligible heavy ion at Large Hadron Collider energies.
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...
We study the process $qq\rightarrow qqg$ at lowest order in QCD perturbation theory to understand gluon radiation fragmentation region of relativistic heavy-ion collisions. arrive a formula for multiplicity that interpolates between $\sim 1/k_{\bot}^2$ behavior low $k_{\bot}$, 1/k_{\bot}^4$ large $k_{\bot}$.
We study the fragmentation (far forward/backward) region of heavy-ion collisions by considering an at-rest nucleus which is struck a relativistic sheet colored glass. By means simple classical model, we calculate subsequent evolution baryons and associated radiation. confirm that undergoes compression dynamics early times collision are best described two separate fluids as produced radiation's velocity distribution very different to matter in nucleus.
We have investigated the single and double diffractive production of dileptons photons in ultra-peripheral collisions at Large Hadron Collider (LHC). Utilizing advanced theoretical models that integrate quantum electrodynamics (QED) Quantum Chromodynamics (QCD) frameworks, we analyze differential cross sections these processes, with particular emphasis on role Pomeron resolved structures, as well photon structures. Our research employs mechanisms to predict dilepton rates under various LHC...
We calculated the production of Higgs boson (H) by two-photon interaction with equivalent photon approximation in nucleus-nucleus collision, proton-nucleus and proton-proton collision. The numerical results show that experimental study ultra-peripheral collisions is feasible at energies relativistic heavy ion collider (RHIC) large hadron (LHC).
The transverse momentum distributions for inclusive <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M2"><mml:mrow><mml:msub><mml:mrow><mml:mi>η</mml:mi></mml:mrow><mml:mrow><mml:mi>c</mml:mi><mml:mo>,</mml:mo><mml:mi>b</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> meson described by gluon-gluon interactions from photoproduction processes in relativistic heavy ion collisions are calculated. We considered the color-singlet (CS) and color-octet (CO) components within...
We calculate the production of exotic electromagnetic bound systems, which ia an consisting a ($l^{+}l^{-}$) state system such as positronium, dimuonium, and ditauonium, by photon-photon interaction with equivalent photon approximation in ultra-peripheral heavy ion collisions considering nuclear form factor. The numerical results demonstrate that experimental study ditauonium is feasible at Relativistic Heavy Ion Collider (RHIC) Large Hadron (LHC) energies.
In this paper, the S-matrix parametrization is adopted to analyze refractive scattering of [Formula: see text] at intermediate energies systematically and that 230 MeV. For text], experimental data containing Fraunhofer oscillations rainbow falloff are reproduced very well by adjusting parameters. The parameters angles show evident tendencies as bombarding energy increases, which comparable with those elastic on carbon target. in forward direction successfully slightly used calculation 210...
We study the photoproduction process of dileptons in heavy ion collision at Relativistic Heavy Ion Collider (RHIC) and Large Hadron (LHC) energys. The equivalent photon approximation, which equates electromagnetic field high-energy charged particles to virtual flux, is used calculate processes production. numerical results demonstrate that experimental ultra-peripheral collisions feasible RHIC LHC energies.