A5088329513- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Atomic and Subatomic Physics Research
- Particle Detector Development and Performance
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Genomics and Phylogenetic Studies
- High-Energy Particle Collisions Research
- Catalytic Processes in Materials Science
- Food composition and properties
- Radiation Detection and Scintillator Technologies
- Microbial Community Ecology and Physiology
- Gamma-ray bursts and supernovae
- Genetic Mapping and Diversity in Plants and Animals
- Experimental and Theoretical Physics Studies
- Oxidative Organic Chemistry Reactions
- Robotic Mechanisms and Dynamics
- Real-time simulation and control systems
- Geophysics and Gravity Measurements
- Optics and Image Analysis
- Catalysis and Oxidation Reactions
- Gut microbiota and health
- Bioinformatics and Genomic Networks
- Computational Physics and Python Applications
Nanjing Forestry University
2024
Shanghai Jiao Tong University
2022-2024
Campbell Collaboration
2023
Nanjing Tech University
2022
Southwest Jiaotong University
2019
We report a search on sub-MeV fermionic dark matter absorbed by electrons with an outgoing active neutrino using the 0.63 tonne year exposure collected PandaX-4T liquid xenon experiment. No significant signals are observed over expected background. The data interpreted into limits to effective couplings between such and electron. For axial-vector or vector interactions, our sensitivity is competitive in comparison existing astrophysical bounds decay of candidate photon final states. In...
We report the search results of light dark matter through its interactions with shell electrons and nuclei, using commissioning data from PandaX-4T liquid xenon detector. Low energy events are selected to have an ionization-only signal between 60 200 photoelectrons, corresponding a mean nuclear recoil 0.77 2.54 keV electronic 0.07 0.23 keV. With effective exposure 0.55 tonne$\cdot$year, we set most stringent limits within mass range 40 $\rm{MeV/c^2}$ 10 $\rm{GeV/c^2}$ for point-like...
This research departs from the conventional molecular design strategy that utilizes spiral units solely as side chains, terminal groups, or linkage units. Instead, we integrate rigid 9,9'‐spirobi[fluorene] (SF) unit fully partially into boron/nitrogen multiple resonances (B/N‐MR) emitting core and successfully developed a range of new proof‐of‐concept isomerized MR thermally activated delayed fluorescence (MR‐TADF) emitters, SF‐BN1, SF‐BN2, SF‐BN3, SF‐BN4. Remarkably, these novel emitters...
This research departs from the conventional molecular design strategy that utilizes spiral units solely as side chains, terminal groups, or linkage units. Instead, we integrate rigid 9,9'‐spirobi[fluorene] (SF) unit fully partially into boron/nitrogen multiple resonances (B/N‐MR) emitting core and successfully developed a range of new proof‐of‐concept isomerized MR thermally activated delayed fluorescence (MR‐TADF) emitters, SF‐BN1, SF‐BN2, SF‐BN3, SF‐BN4. Remarkably, these novel emitters...
The Genome Sequence Archive Family (GSA family) provides a suite of database resources for archiving, retrieving, and sharing multi-omics data the global academic industrial communities. It currently comprises four distinct members: (GSA, https://ngdc.cncb.ac.cn/gsa/), Human (GSA-Human, https://ngdc.cncb.ac.cn/gsa-human/), open Miscellaneous Data (OMIX, https://ngdc.cncb.ac.cn/omix/), Open Biomedical Imaging (OBIA, https://ngdc.cncb.ac.cn/obia). Compared to 2021 version, GSA family has...
Compared with the signature of dark matter elastic scattering off nuclei, absorption fermionic by nuclei opens up a new searching channel for light characteristic monoenergetic signal. In this Letter, we explore 95.0-day data from PandaX-4T commissioning run and report first dedicated results signal through neutral current process. No significant was found, lowest limit on matter-nucleon interaction cross section is set to be 1.5×10^{-50} cm^{2} mass 40 MeV/c^{2} 90% confidence level.
To explore the impacts of galactose side-chain on prebiotic activity xyloglucan oligosaccharides (XGOS), XGOS and de-galactosylated (DG-XGOS) were prepared from tamarind using an enzymatic method. The differences in structural features DG-XGOS systematically analyzed. Their
We present the constraints on axial-vector and pseudo-scalar mediated WIMP-nucleus interactions from PandaX-4T experiment, using data set corresponding to a total exposure of 0.63~tonne$\cdot$year. No significant signal excess is observed, most stringent upper limits date spin-dependent WIMP-neutron scattering cross section are at 90\% confidence level with minimum 5.8$\times 10^{-42}$\si{\cm^{2}} for WIMP mass 40~\si{\GeV/}$c^2$. Exclusion simplified models also derived.
We report a search for light dark matter produced through the cascading decay of η mesons, which are created as result inelastic collisions between cosmic rays and Earth's atmosphere. introduce new general framework, publicly accessible, designed to address boosted specifically, with full dedicated simulation including both elastic quasielastic processes Earth attenuation effect on particles arriving at detector is performed. In PandaX-4T commissioning data 0.63 tonne⋅year exposure, no...
Abstract The PandaX-4T experiment is designed for multiple purposes, including searches solar neutrinos, weakly interacting massive particles, and rare double beta decays of xenon isotopes. produces a huge amount raw data that needs to be stored related physical analyses in wide energy range. With the upgrading experiment, doubled sampling rate resulted larger size, which challenges both cost processing speed. To address this issue, we propose reduction strategy by removing noise tail large...
Neutrinos from core-collapse supernovae are essential for the understanding of neutrino physics and stellar evolution. The dual-phase xenon dark matter detectors can provide a way to track explosions galactic by detecting neutrinos through coherent elastic neutrino-nucleus scatterings. In this study, variation progenitor masses as well explosion models assumed predict fluxes spectra, which result in number expected events ranging 6.6 13.7 at distance 10 kpc over 10-second duration with...
New particles beyond the Standard Model of particle physics, such as axions, can be effectively searched through their interactions with electrons. We use large liquid xenon detector PandaX-4T to search for novel electronic recoil signals induced by solar neutrinos anomalous magnetic moment, axion-like particles, dark photons, and light fermionic matter. A detailed background model is established latest datasets 1.54 $\rm tonne \cdot year$ exposure. No significant excess above has been...
We present a novel constraint on light dark matter utilizing $1.54$ tonne$\cdot$year of data acquired from the PandaX-4T dual-phase xenon time projection chamber. This is derived through detecting electronic recoil signals resulting interaction with solar-enhanced flux. Low-mass particles, lighter than few MeV/$c^2$, can scatter thermal electrons in Sun. Consequently, higher kinetic energy, boosted component becomes detectable via contact scattering electrons, keV energy deposition that...
We report results of a search for dark-matter-nucleon interactions via dark mediator using optimized low-energy data from the PandaX-4T liquid xenon experiment. With ionization-signal-only and utilizing Migdal effect, we set most stringent limits on cross section matter masses ranging 30 MeV/c^{2} to 2 GeV/c^{2}. Under assumption that is photon decays into scalar pairs in early Universe, rule out significant parameter space such thermal relic dark-matter model.
The generation of single oxygen in the activation peroxymonosulfate (PMS) is attractive for selective oxidation some organic contaminants. structure nitrogen doped on carbon can strongly influence reactive species. In this study, waste-tire (WTC), as a recycled material, was with through vibration milling, which generated structures graphite N and pyridine N. N-doped WTC exhibited an efficient catalytic activity degradation 2,4-dichlorophenol (2,4-DCP) PMS UV light. Meanwhile, both radical...
We present the constraints on axial-vector and pseudo-scalar mediated WIMP-nucleus interactions from PandaX-4T experiment, using data set corresponding to a total exposure of 0.63~tonne$\cdot$year. No significant signal excess is observed, most stringent upper limits date spin-dependent WIMP-neutron scattering cross section are at 90\% confidence level with minimum 5.8$\times 10^{-42}$\si{\cm^{2}} for WIMP mass 40~\si{\GeV/}$c^2$. Exclusion simplified models also derived.