A5104343802- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Computational Physics and Python Applications
- Cosmology and Gravitation Theories
- Radiation Detection and Scintillator Technologies
- Medical Imaging Techniques and Applications
- Distributed and Parallel Computing Systems
- Advanced Data Storage Technologies
- Parallel Computing and Optimization Techniques
- Atomic and Subatomic Physics Research
- Superconducting and THz Device Technology
- Astrophysics and Cosmic Phenomena
- Scientific Computing and Data Management
- Metamaterials and Metasurfaces Applications
- Advanced MRI Techniques and Applications
- Muon and positron interactions and applications
- Radioactive Decay and Measurement Techniques
- Neuroendocrine regulation and behavior
- Neurotransmitter Receptor Influence on Behavior
- Nuclear Physics and Applications
- Electromagnetic Scattering and Analysis
University of California, Berkeley
2023-2025
University of California System
2024-2025
Lawrence Berkeley National Laboratory
2023-2024
Université Savoie Mont Blanc
2024
Institut National de Physique Nucléaire et de Physique des Particules
2024
A. Alikhanyan National Laboratory
2024
The University of Adelaide
2023
Korea Advanced Institute of Science and Technology
2017-2022
Institute for Basic Science
2019-2022
Osaka University
2019
The axion, a consequence of the PQ mechanism, has been considered as most elegant solution to strong-CP problem and compelling candidate for cold dark matter. Center Axion Precision Physics Research (CAPP) Institute Basic Science (IBS) was established on 16 October 2013 with main objective launch state art axion experiments in South Korea. Relying haloscope technique, our strategy is run several parallel explore wide range masses sensitivities better than QCD models. We utilize not only...
The reconstruction of the trajectories charged particles, or track reconstruction, is a key computational challenge for particle and nuclear physics experiments. While tuning algorithms can depend strongly on details detector geometry, currently in use by experiments share many common features. At same time, intense environment High-Luminosity LHC accelerator other future expected to put even greater stress software, motivating development more performant algorithms. We present here A Common...
Exploring the leptonic sector in frontier experiments is more of importance nowadays, since conservation lepton flavor and total number are not guaranteed anymore Standard Model after discovery neutrino oscillations. $\mu^- + N(A,Z) \rightarrow e^+ N(A,Z-2)$ conversion a muonic atom one most promising channels to investigate violation process, measurement this process planned future $\mu^--e^-$ with muon-stopping target. This paper discusses how maximize experimental sensitivity $\mu^--e^+$...
Today's world of scientific software for High Energy Physics (HEP) is powered by x86 code, while the future will be much more reliant on accelerators like GPUs and FPGAs. The portable parallelization strategies (PPS) project Center Computational Excellence (HEP/CCE) investigating solutions portability techniques that allow coding an algorithm once, ability to execute it a variety hardware products from many vendors, especially including accelerators. We think without these solutions, success...
A fast data acquisition (DAQ) system for axion dark matter searches utilizing a microwave resonant cavity, also known as haloscope searches, has been developed with two-channel digitizer that can sample 16-bit amplitudes at rates up to 180 MSamples/s. First, we realized practical DAQ efficiency of greater than 99% single channel, where the process includes online Fourier transforms (FFTs). Using an IQ mixer and two parallel channels, then implemented software-based image rejection without...
Abstract A detailed geometry description is essential to any high quality track reconstruction application. In current C++ based software libraries this often achieved by an object oriented, polymorphic that implements different shapes and objects extending a common base class. Such design, however, has been shown be problematic when attempting adapt these applications run on heterogeneous computing hardware, particularly hardware accelerators. We present detray, compile time yet accurate...
In high-energy physics experiments, the trajectories of charged particles are reconstructed using track reconstruction algorithms. Such algorithms need to both identify set measurements from a single particle and fit parameters by propagating tracks along measurements. The propagation parameter uncertainties is an important component in fitting get optimal precision fitted parameters. error performed at intersections between local coordinate frames defined on detector components calculating...
High-energy physics (HEP) experiments have developed millions of lines code over decades that are optimized to run on traditional x86 CPU systems. However, we seeing a rapidly increasing fraction floating point computing power in leadership-class facilities and data centers coming from new accelerator architectures, such as GPUs. HEP now faced with the untenable prospect rewriting code, for increasingly dominant architectures found these computational accelerators. This task is made more...
Track finding with GPU-implemented fourth order Runge-Kutta (RK) method is investigated to track electrons from muon decay in the COMET drift chamber. In chamber, about 30-40 \% of signal events are composed multiple turns where right hit assignments each turn partition significant finding. Scanning all possible seeds can resolve hit-to-track assignment problem a high robustness noise hits, but requires huge computational cost because two reasons: 1) The adaptive RK propagate electron needs...
The GPU-accelerated track finding method is investigated to electrons from neutrinoless muon decay in the COMET Phase-I experiment. Inside cylindrical drift chamber, one third of signal electron trajectories are composed multiple turns where correct hit assignments each turn partition significant finding. Scanning all possible seeds position and momentum can resolve hit-to-turn assignment problem with a high robustness, but requires huge computational cost: initial $(θ,z,p_x,p_y,p_z)$ have...