A5057078976- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Geological Modeling and Analysis
- Radiation Detection and Scintillator Technologies
- High-Energy Particle Collisions Research
- 3D Surveying and Cultural Heritage
- Remote Sensing and LiDAR Applications
- Landslides and related hazards
- Dark Matter and Cosmic Phenomena
- Dam Engineering and Safety
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Seismic Imaging and Inversion Techniques
- Geochemistry and Geologic Mapping
- Superconducting Materials and Applications
- Geotechnical Engineering and Analysis
- Atomic and Subatomic Physics Research
- Soil Geostatistics and Mapping
- Reservoir Engineering and Simulation Methods
- Soil erosion and sediment transport
- Geology and Paleoclimatology Research
- Fire effects on ecosystems
- Geological and Geophysical Studies
- Satellite Image Processing and Photogrammetry
- Particle accelerators and beam dynamics
Academia Sinica
2025
National Central University
2019-2024
Institute of Physics, Academia Sinica
2022
University of Cincinnati
2021
National Taiwan University
2010-2017
Institute of Earth Sciences, Academia Sinica
2014-2017
Neutrino-nucleus elastic scattering (νA_{el}) with partial quantum-mechanical coherency has been observed in several nuclei neutrinos from decay-at-rest pions. This interaction reactor where is >95% not yet experimentally observed. We present new results on the studies of νA_{el} cross section an electrocooled p-type point-contact germanium detector at Kuo-Sheng Reactor Neutrino Laboratory. A total 242(357) kg-days ON(OFF) data a threshold 200 eV ionization energy are analyzed. The Lindhard...
We present new constraints on light dark matter boosted by cosmic rays (CRDM) using the 205.4 kg day data of CDEX-10 experiment conducted at China Jinping Underground Laboratory. The Monte Carlo simulation package CJPL\_ESS was employed to evaluate Earth shielding effect. Several key factors have been introduced and discussed in our CRDM analysis, including contributions from heavier CR nuclei than proton helium, inhomogeneity distribution, impact form factor attenuation calculation. Our...
Dark matter direct detection experiments mostly operate at deep underground laboratories. It is necessary to consider shielding effect of the Earth, especially for dark particles interacting with a large cross section. We analyzed and simulated Earth China Jinping Underground Laboratory (CJPL) simulation package, CJPL Shielding Simulation code (CJPL_ESS), which applicable other locations. The further constraints on $\ensuremath{\chi}\text{\ensuremath{-}}\mathrm{N}$ section exclusion regions...
We present improved germanium-based constraints on sub-GeV dark matter via matter-electron (χ-e) scattering using the 205.4 kg·day dataset from CDEX-10 experiment. Using a novel calculation technique, we attain predicted χ-e spectra observable in high-purity germanium detectors. In heavy mediator scenario, our results achieve 3 orders of magnitude improvement for m_{χ} larger than 80 MeV/c^{2} compared to previous results. also most stringent cross-section limit date among experiments...
An accurate and reliable 3D engineering geological model (expressed herein as a litho-stratigraphic model) is essential for designing slopes, underground structures, tunnels to reduce the risk of failure. Due budget constraints, subsurface investigations with traditional methods (e.g., boreholes geophysical prospecting) are often limited in quantity. Insufficient investigation leads inadequate data that can degrade reliability developed models. To this end, LiDAR, which collect topographic...
After decades of experimental efforts, the DAMA/LIBRA(DL) annual modulation (AM) analysis on <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>χ</a:mi><a:mi mathvariant="normal">N</a:mi></a:math> (WIMP dark matter interactions nucleus) channel remains only one which can be interpreted as positive signatures. This has been refuted by numerous time-integrated (TI) and AM analysis. It shown that <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"...
Even though jet substructure was not an original design consideration for the Large Hadron Collider (LHC) experiments, it has emerged as essential tool current physics program. We examine role of on motivation and future energy Frontier colliders. In particular, we discuss need a vibrant theory experimental research development program to extend into new regimes probed by Jet organically evolved with close connection between theorists experimentalists catalyzed exciting innovations in both...
Traditional geological mapping may be hindered by rough terrain and dense vegetation resulting in obscured details.The advent of airborne Light Detection Ranging (LiDAR) provides a very precise three-dimensional (3D) digital model (DTM).However, its full potential complementing traditional remains to explored using 3D rendering techniques.This study uses two types images which differ imaging principles further explore the finer details sedimentary terrain.Our purposes are demonstrate...
A natural broad energy germanium (BEGe) detector is operated in the China Jinping Underground Laboratory (CJPL) for a feasibility study of building next generation experiment neutrinoless double-beta (0{$\nu\beta\beta$}) decay $^{76}$Ge. The setup prototype facility, characteristics BEGe detector, background reduction methods, and data analysis are described this paper. index 6.4$\times$10$^{-3}$ counts/(keV$\cdot$kg$\cdot$day) achieved 1.86 times lower than our previous result CDEX-1...
This paper presents results of a case study on cliff recession mechanism and progressive development talus deposits around Xiangshan the Sishou Hills in southeast Taipei Basin.Based photogrammetric analysis physical modeling, geomorphologic changes are carefully examined rates from 1904 to 2005 thus measured tabulated.Our identified fundamental control factors mechanisms proposed possible scenario region 2005.
Jet substructure variables for hadronic jets with transverse momenta in the range from 2.5 TeV to 20 were studied using several designs spatial size of calorimeter cells. The studies used full Geant4 simulation response combined realistic reconstruction clusters. In most cases, results indicate that performance jet-substructure improves reducing cell a Δ η × ϕ = 0.087×0.087, which are similar sizes calorimeters LHC experiments, by factor four, 0.022×0.022.
The importance of the geological model in a geotechnical engineering project has long been recognized. However, uncertainty associated with rarely quantified and explicitly considered design. This paper explores role benefit reducing such To this end, landslide that occurred on April 25, 2010, at 3.3K Freeway No. 3 Northern Taiwan, referred to herein as NH-3 Slope, is reanalyzed various assumed models. Traditionally, design (i.e., choice parameters slope height, angle, supporting anchors)...
Neutrino nucleus elastic scattering ({\nu}Ael) with reactor neutrinos is an interaction under full quantum-mechanical coherence. It has not yet been experimentally observed. We present new results on the studies of {\nu}Ael cross section electro-cooled p-type point-contact germanium detector at Kuo-Sheng Reactor laboratory. A total (242)357 kg-days ON(OFF) data a threshold 200 eVee in electron equivalent unit are analyzed. The Lindhard model parametrized by single variable k which...
After decades of experimental efforts, the DAMA/LIBRA(DL) annual modulation (AM) analysis on ${\chi}$N (WIMP Dark Matter interactions nucleus) channel remains only one which can be interpreted as positive signatures. This has been refuted by numerous time-integrated (TI) and AM analysis. It shown that ${\chi}$e with electrons) alone is not compatible DL data. We expand investigations performing an addition long-range short-range to ${\chi}$N, derived using frozen-core approximation method....
The physics potential of timing layers with a few tens pico-second resolution in the calorimeters future collider detectors is explored. These studies show how such can be used for particle identification and illustrate detecting new event signatures originating from beyond standard model.
A detailed 3D engineering geological model (expressed herein as a stratigraphic for work) is essential designing foundations, slopes, underground structures, and tunnels to reduce the risk of failure. However, traditional methods subsurface investigation, such drilling geophysical testing, may not yield sufficient data due cost or testing limitations, resulting in high degree uncertainty developed models. The airborne LiDAR technology has enabled collection high-resolution topographic data,...
A detailed 3D stratigraphic model is essential for designing underground structures such as tunnels, it can reduce the risk of geotechnical failure. However, traditional methods subsurface geological investigation, drilling and geophysical testing, may not yield sufficient data due to cost or testing limitations, resulting in a high degree uncertainty developed models. Recently, airborne LiDAR technology has provided high-resolution topographic help improve accuracy mapping. Still, reliable...
Out of the three sources model uncertainties (ground, geotechnical, and geologic uncertainties), uncertainty was less discussed in geotechnical engineering analyses. In this study, we focused on effect uncertainty, expressed as joint spacing debris accumulation features a dip slope sliding case. 3D distinct element models were established by incorporating LiDAR digital elevation map given set distribution. Based analysis results, it found that crest displacement, run-out distance, coverage...
Generally, the number of boreholes drilled in a project is constrained by field investigative budget. How to select additional increase reliability deduced stratigraphic profile, or reduce uncertainty an essential issue. This paper utilizes stochastic Markov random (MRF) study effect added synthetic model. The information entropy employed quantify model uncertainty. First, parametric studies borehole locations and MRF parameter were conducted. Then, accuracy simulation was assessed comparing...