A5110658750- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- Spectroscopy and Laser Applications
- Advanced Semiconductor Detectors and Materials
- Radiation Effects in Electronics
- Solid State Laser Technologies
- Superconducting Materials and Applications
- Semiconductor Quantum Structures and Devices
- Particle accelerators and beam dynamics
- Atmospheric Ozone and Climate
- Quantum Chromodynamics and Particle Interactions
- Atmospheric aerosols and clouds
- Planetary Science and Exploration
- Laser Design and Applications
- High-Energy Particle Collisions Research
- CCD and CMOS Imaging Sensors
- Advancements in Semiconductor Devices and Circuit Design
- Analytical Chemistry and Chromatography
- Distributed Control Multi-Agent Systems
- Radiation Detection and Scintillator Technologies
- Mass Spectrometry Techniques and Applications
- Advanced Optical Sensing Technologies
- Dark Matter and Cosmic Phenomena
- Robotic Path Planning Algorithms
- Random lasers and scattering media
Shanghai Jiao Tong University
2021-2024
Shanghai Institute of Technical Physics
2023
Goddard Space Flight Center
2017
RWTH Aachen University
1996-1998
University of Maryland, College Park
1989-1990
We present the first results of Fermilab Muon g-2 Experiment for positive muon magnetic anomaly $a_\mu \equiv (g_\mu-2)/2$. The is determined from precision measurements two angular frequencies. Intensity variation high-energy positrons decays directly encodes difference frequency $\omega_a$ between spin-precession and cyclotron frequencies polarized muons in a storage ring. ring field measured using nuclear resonance probes calibrated terms equivalent proton spin precession...
We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from Fermilab Muon g-2 Experiment using data collected in 2019 and 2020. have analyzed more than 4 times number positrons decay our previous result 2018 data. The systematic error is reduced by factor 2 due to better running conditions, stable beam, improved knowledge field weighted distribution, ω[over ˜]_{p}^{'}, anomalous precession frequency corrected for beam dynamics effects, ω_{a}. From ratio...
The Muon g-2 Experiment at Fermi National Accelerator Laboratory (FNAL) has measured the muon anomalous precession frequency $ω_a$ to an uncertainty of 434 parts per billion (ppb), statistical, and 56 ppb, systematic, with data collected in four storage ring configurations during its first physics run 2018. When combined a precision measurement magnetic field experiment's ring, determines anomaly $a_μ({\rm FNAL}) = 116\,592\,040(54) \times 10^{-11}$ (0.46 ppm). This article describes...
The Fermi National Accelerator Laboratory has measured the anomalous precession frequency $a^{}_\mu = (g^{}_\mu-2)/2$ of muon to a combined precision 0.46 parts per million with data collected during its first physics run in 2018. This paper documents measurement magnetic field storage ring. is monitored by nuclear resonance systems and calibrated terms equivalent proton spin spherical water sample at 34.7$^\circ$C. weighted distribution resulting $\tilde{\omega}'^{}_p$, denominator ratio...
We present details on a new measurement of the muon magnetic anomaly, $a_\mu = (g_\mu -2)/2$. The result is based positive data taken at Fermilab's Muon Campus during 2019 and 2020 accelerator runs. uses $3.1$ GeV$/c$ polarized muons stored in $7.1$-m-radius storage ring with $1.45$ T uniform field. value $ a_{\mu}$ determined from measured difference between spin precession frequency its cyclotron frequency. This normalized to strength field, using Nuclear Magnetic Resonance (NMR). ratio...
We present a new measurement of the positive muon magnetic anomaly, $a_\mu \equiv (g_\mu - 2)/2$, from Fermilab Muon $g\!-\!2$ Experiment using data collected in 2019 and 2020. have analyzed more than 4 times number positrons decay our previous result 2018 data. The systematic error is reduced by factor 2 due to better running conditions, stable beam, improved knowledge field weighted distribution, $\tilde{\omega}'^{}_p$, anomalous precession frequency corrected for beam dynamics effects,...
This paper presents the beam dynamics systematic corrections and their uncertainties for Run-1 data set of Fermilab Muon g-2 Experiment. Two to measured muon precession frequency $\omega_a^m$ are associated with well-known effects owing use electrostatic quadrupole (ESQ) vertical focusing in storage ring. An average vertically oriented motional magnetic field is felt by relativistic muons passing transversely through radial electric components created ESQ system. The correction depends on...
This study presents an innovative approach to evaluate the implementation effects of Rural Revitalization Strategy R2S, utilising robust capabilities wavelet analysis algorithm. The proposed methodology integrates strength transform, advanced mathematical tool for signal processing, with entropy weighting method and Technique Order Preference by Similarity Ideal Solution (TOPSIS) model. integration creates a comprehensive framework assessing multifaceted impacts rural revitalisation...
The infrared detection material GaAs/AlGaAs quantum wells is modeled as an uniaxial effective medium during the simulation of well photodetectors (QWIPs). This approach helps us reveal new physics in QWIPs and design with high performances.
The most commonly used lidar ( l ight d etection a nd r anging) systems are not eye-safe and pose potential risk of eye damage especially in the case downward pointing airborne systems. A short wavelength capable operating nominally spectral regions (1.54 μ m) is needed for cloud aerosol studies [2, 3]. Raman-shifted Nd:YAG laser generating 1.54 m radiation can be developed to qualify as an [4,5,6]. eye-safety criterion set by American National Standard Institute (ANSI) single pulse exposure...
Tropospheric and middle atmosphere measurements using lidar systems at the University of Maryland are described. Measurements include depolarization by clear high altitude cirrus clouds, cloud morphology for tropospheric haze rapid variations free line-of-sight. Rayleigh scattering from stratosphere mesosphere is employed to derive temperature density profiles. A photon counting system has been developed extending into mesosphere. We also constructing a transportable air, aerosol, cloud,...