A5103210328- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Black Holes and Theoretical Physics
- Galaxies: Formation, Evolution, Phenomena
- Nuclear physics research studies
- Atomic and Subatomic Physics Research
- Adsorption and biosorption for pollutant removal
- Radio Astronomy Observations and Technology
- Medical Imaging Techniques and Applications
- Computational Physics and Python Applications
- Astronomical and nuclear sciences
- CCD and CMOS Imaging Sensors
- Characterization and Applications of Magnetic Nanoparticles
- Particle Accelerators and Free-Electron Lasers
- Algebraic and Geometric Analysis
- Dye analysis and toxicity
- Integrated Circuits and Semiconductor Failure Analysis
- Microfluidic and Bio-sensing Technologies
- Advanced Algebra and Geometry
Chengdu Institute of Biology
2024
Chinese Academy of Sciences
2021-2024
Institute of High Energy Physics
2021-2023
Peking University
2020-2021
University of South China
2021
University of Science and Technology of China
2021
State Key Laboratory of Nuclear Physics and Technology
2020
Tsinghua University
2012-2020
Mitchell Institute
2016-2017
Texas A&M University
2016-2017
We investigate constraints on the abundance of primordial black holes (PBHs) in mass range ${10}^{15}--{10}^{17}\text{ }\text{ }\mathrm{g}$ using data from cosmic microwave background (CMB) and MeV extragalactic gamma-ray (EGB). Hawking radiation PBHs with lifetime greater than age Universe leaves an imprint CMB through modification ionization history damping anisotropies. Using a model for redshift-dependent energy injection efficiencies, we show that combination temperature polarization...
We discuss prospects for probing short-range sterile neutrino oscillation using neutrino-nucleus coherent scattering with ultralow energy ($\ensuremath{\sim}10--100\text{ }\text{ }\mathrm{eV}$) recoil threshold cryogenic Ge detectors. The analysis is performed in the context of a specific and contemporary reactor-based experimental proposal, developed cooperation Nuclear Science Center at Texas A University, references developing technology based upon economical scalable detector arrays....
Abstract Hawking radiation from primordial black holes (PBH) can ionize and heat up neutral gas during the cosmic dark ages, leaving imprints on global 21-cm signal of hydrogen. We use to constrain abundance spinning PBHs in mass range [2 × 10 13 , 18 ] grams. consider several extended PBH distribution models. Our results show that set most stringent bounds our window. Compared with constraints by Planck microwave background (CMB) data, limits are more about two orders magnitudes. higher...
Cadmium (Cd) is a common and toxic non-essential heavy metal that must be effectively treated to reduce its threat the environment public health. Adsorption with an adsorbent, such as agricultural waste, widely used remove metals from wastewater. Sweet potato, sixth most abundant food crop worldwide, produces large amount of waste during postharvest processing could economic adsorbent. In this study, feasibility using sweet potato residue (SPR) adsorbent for Cd
Using a dataset of 6.32 fb^{-1} e^{+}e^{-} annihilation data collected with the BESIII detector at center-of-mass energies between 4178 and 4226 MeV, we have measured absolute branching fraction leptonic decay D_{s}^{+}→τ^{+}ν_{τ} via τ^{+}→e^{+}ν_{e}ν[over ¯]_{τ}, find B_{D_{s}^{+}→τ^{+}ν_{τ}}=(5.27±0.10±0.12)×10^{-2}, where first uncertainty is statistical second systematic. The precision improved by factor 2 compared to previous best measurement. Combining f_{D_{s}^{+}} from lattice...
The nonrelativistic annihilation of Majorana dark matter in the Sun to a pair light fermions is chirality suppressed. Annihilation 3-body final states ${\ensuremath{\ell}}^{+}{f}^{\ensuremath{-}}V$, where $V=W$, $Z$, $\ensuremath{\gamma}$, and $\ensuremath{\ell}$ $f$ are (that may be same), becomes dominant since bremsstrahlung relaxes suppression. We evaluate neutrino spectra at source, including spin helicity dependent effects, assess detectability each significant channel...
Abstract We study the hadronic decays of to final states and , using an annihilation data sample 567 pb -1 taken at a center-of-mass energy 4.6 GeV with BESIII detector BEPCII collider. find evidence for statistical significance respectively. Normalizing reference we obtain ratios branching fractions be The upper limits 90% confidence level are set . Using measurements decays, determine % (<0.68%) (<1.9%). Here, first uncertainties second systematic. obtained fraction is consistent...
We consider the $SU(6)$ GUT model as an explanation for diphoton final state excess, where masses of all associated particles are linked with a new symmetry breaking scale. In this model, states arise due to loops involving three pairs vector-like having same quantum numbers down-type quarks and lepton doublets. These fermions embedded alongside SM into minimal anomaly-free representations gauge symmetry. The is broken Standard Model times $U(1)_X$ at scale, TeV scale only after residual...
We explore the sensitivity of an experiment at Daya Bay site, with a point radioactive source and few meter baseline, to neutrino oscillations involving one or more eV mass sterile neutrinos. find that within year, entire 3+2 1+3+1 parameter space preferred by global fits can be excluded 3\sigma level, if oscillation signal is found, 3+1 scenarios distinguished from each other than level provided neutrinos lighter 0.5 eV.
The proposed Mitchell Institute Neutrino Experiment at Reactor (MINER) experiment the Nuclear Science Center Texas A&M University will search for coherent elastic neutrino-nucleus scattering within close proximity (about 2 meters) of a 1 MW TRIGA nuclear reactor core using low threshold, cryogenic germanium and silicon detectors. Given Standard Model cross section process experimental to reactor, as many 5 20 events/kg/day are expected. We discuss status preliminary measurements characterize...
The statistical uncertainties of 13 model parameters in the Weizsäcker-Skyrme (WS*) mass are investigated for first time with an efficient approach, and propagated errors predicted masses estimated. discrepancies between experimental data, including new data AME2016, almost all smaller than errors. For neutron-rich heavy nuclei, increase considerably, go up to a few MeV when nucleus approaches neutron drip line. most sensitive parameter which causes largest error is analyzed bound nuclei. We...
Based on 586 $\rm{pb^{-1}}$ of $e^+e^-$ annihilation data collected at a center-of-mass energy $\sqrt{s}=4.6~\rm{GeV}$ with the BESIII detector BEPCII collider, absolute branching fraction $\Lambda_c^+ \to p K^0_{\mathrm{S}}\eta$ decays is measured for first time to be $\mathcal{B}(\Lambda_c^+ K^0_{\mathrm{S}}\eta) = (0.414 \pm 0.084 0.028)\%$, where uncertainty statistical and second systematic. The result compatible previous CLEO relative $\frac{\mathcal{B}(\Lambda_c^+...
Abstract Cascade of particles injected as Hawking Radiation from Primordial Black Holes (PBH) can potentially change the cosmic recombination history by ionizing and heating intergalactic medium, which results in altering anisotropy spectra Cosmic Microwave Background (CMB). In this paper, we study expected sensitivity several future CMB experiments constraining abundance PBHs distributed 10 15 ∼10 17 g mass window according to four functions: monochromatic, log-normal, power-law critical...
Abstract The large gap between a galactic dark matter subhalo’s velocity and its own gravitational binding creates the situation that small subhalos can be evaporated before thermalize with baryons due to low velocity. In case acquires an electromagnetic dipole moment, survival of low-mass requires stringent limits on photon-mediated soft scattering. current direct detection indicate for which lets DM decouple early allows form. We calculate kinetic decoupling temperature in Early Universe...
The large gap between a galactic dark matter subhalo's velocity and its own gravitational binding creates the situation that small subhalos can be evaporated before thermalize with baryons due to low velocity. In case acquires an electromagnetic dipole moment, survival of low-mass requires stringent limits on photon-mediated soft scattering. current direct detection indicate for which lets DM decouple early allows form. We calculate kinetic decoupling temperature in Early Universe evaluate...