A5064187303- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Power Systems and Technologies
- Cosmology and Gravitation Theories
- Smart Grid and Power Systems
- Power Systems Fault Detection
- Advanced Battery Technologies Research
- Computational Physics and Python Applications
- Machine Fault Diagnosis Techniques
- Black Holes and Theoretical Physics
- Electric Vehicles and Infrastructure
- Advanced Sensor and Control Systems
- Advanced Computational Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Advanced Algorithms and Applications
- Medical Imaging Techniques and Applications
- Smart Grid Energy Management
- Embedded Systems and FPGA Design
- Superconducting Materials and Applications
- Atomic and Subatomic Physics Research
- Chaos-based Image/Signal Encryption
North China Electric Power University
2012-2025
Case Western Reserve University
2025
Southwest Medical University
2024
Stomatology Hospital
2024
Henan University
2024
China University of Petroleum, Beijing
2024
Institute of Physics, Academia Sinica
2013-2023
University of Michigan–Ann Arbor
1997-2022
University of Chinese Academy of Sciences
2018-2020
Radboud University Nijmegen
2017-2018
We report the observation of a near-threshold enhancement in omegaJ/psi invariant mass distribution for exclusive B-->KomegaJ/psi decays. The results are obtained from 253 fb(-1) data sample that contains 275 x 10(6) BB pairs were collected near Upsilon(4S) resonance with Belle detector at KEKB asymmetric energy e(+)e(-) collider. statistical significance is estimated to be greater than 8sigma.
We report the observation of prompt J/psi via double cc; production from e+e- continuum. In this process one pair fragments into a meson while remaining either produces charmonium state or open charm. Both cases have been experimentally observed. find cross sections sigma[e+e- -->J/psieta(c)(gamma)]xB(eta(c)-->>or=4 charged)=(0.033(+0.007)(-0.006)+/-0.009) pb and sigma(e+e- -->J/psiD(*+)X)=(0.53(+0.19)(-0.15)+/-0.14) infer -->J/psicc;)/sigma(e+e- -->J/psiX)=0.59(+0.15)(-0.13)+/-0.12. These...
We report the first observation of a charmoniumlike state recoiling from J/psi in inclusive process e+e- -->J/psi+anything at mass (3.943+/-0.006+/-0.006) GeV/c{2}. also observe decay this into D*D[over ] and determine its intrinsic width to be less than 52 MeV/c{2} 90% C.L. These results are obtained 357 fb{-1} data sample collected with Belle detector near Upsilon(4S) resonance, KEKB asymmetric-energy collider.
We report on a search for new resonant states in the process γγ→D¯¯¯D. A candidate C-even charmonium state is observed vicinity of 3.93 GeV/c2. The production rate and angular distribution γγ center-of-mass frame suggest that this previously unobserved χ′c2, 23P2 state.Received 15 December 2005DOI:https://doi.org/10.1103/PhysRevLett.96.082003©2006 American Physical Society
We present the first evidence of decay B -→ τ -ντ , using 414 fb -1 data collected at Υ(4S) resonance with Belle detector KEKB asymmetric-energy e + -collider.Events are tagged by fully reconstructing one mesons in hadronic modes.We detect signal a significance 3.5 standard deviations including systematics, and measure branching fraction to be B(B ) = (1.79+0.56 -0.49(stat) +0.46 -0.51 (syst)) × 10 -4 .This implies that fB 0.229 +0.036 -0.031 (stat) +0.034 -0.037 (syst) GeV is direct...
We report the observation of an isotriplet excited charmed baryons, decaying into Lambda(+)(c)pi(-), Lambda(+)(c)pi(0), and Lambda(+)(c)pi(+). measure mass differences M(Lambda(+)(c)pi)-M(Lambda(+)(c)) widths to be 515.4(+3.2+2.1)(-3.1-6.0) MeV/c(2), 61(+18+22)(-13-13) MeV for neutral state; 505.4(+5.8+12.4)(-4.6-2.0) 62(+37+52)(-23-38) charged 514.5(+3.4+2.8)(-3.1-4.9) 75(+18+12)(-13-11) doubly state, where uncertainties are statistical systematic, respectively. These results obtained from...
We present measurements of decay amplitudes and triple-product correlations in $B\ensuremath{\rightarrow}\ensuremath{\phi}{K}^{*}$ decays based on $253\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data recorded at the $\ensuremath{\Upsilon}(4S)$ resonance with Belle detector KEKB ${e}^{+}{e}^{\ensuremath{-}}$ storage ring. The for three different helicity states are determined from angular distributions final-state particles. longitudinal polarization found to be...
We report on a high statistics measurement of the cross section process $\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ in ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ invariant mass range $0.8\text{ }\text{ }\mathrm{GeV}/{c}^{2}<W<1.5\text{ }\mathrm{GeV}/{c}^{2}$ with $85.9\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data collected at $\sqrt{s}=10.58\text{ }\mathrm{GeV}$ and 10.52 GeV Belle detector. A...
Aiming at the difficulty of single-phase grounding fault line selection in a small current system, distribution network method based on modified CEEMDAN and convolutional neural is proposed. Firstly, random forest multiscale permutation entropy are used to modify Complete Ensemble Empirical Mode Decomposition Adaptive Noise algorithm (CEEMDAN), zero-sequence each decomposed into series intrinsic mode functions through (MCEEMDAN) algorithm. Secondly, function transformed image formation by...
This paper provides an exhaustive evaluation of different algorithms for the accurate detection and localization dense clusters on complex image data with a resolution to maintain real centroids in obscure, overlapping, or densely packed situations. Our approach differs by its use local maximum algorithm quickly identify potential cluster centers (by detecting maxima pixel intensity) as first step. The starts initializing centers, which are then refined using k-Means clustering method that...
ABSTRACT When a grounding fault occurs in distribution network with distributed generation (DG), it poses significant challenges for localization, including difficulties extracting features, complex changes topology, and limited samples. A localization method based on domain‐adaptive transfer dynamic graph attention (TGATv2) is proposed to tackle these challenges. First, feature selection (FS) module embedded into the (GATv2), which can automatically select zero‐sequence current statistical...
We report on a study of three-body charmless decays B+→K+h+h− based 29.1fb−1 data sample collected with the Belle detector. With no assumptions intermediate mechanisms, following branching fractions have been measured for first time: B(B+→K+π−π+)=(55.6±5.8±7.7)×10−6 and B(B+→K+K−K+)=(35.3±3.7±4.5)×10−6. present observation decay B+→f0(980)K+ fraction product B(B+→f0(980)K+)×B(f0(980)→π+π−)=(9.6+2.5+1.5+3.4−2.3−1.5−0.8)×10−6. This is reported example B meson to scalar pseudoscalar final...
We present a precise measurement of the standard model $CP$-violation parameter $\mathrm{sin}2{\ensuremath{\phi}}_{1}$, direct $CP$ violation $|\ensuremath{\lambda}|$, lifetimes charged and neutral $B$ mesons their ratio, ${B}^{0}$-${\overline{B}}^{0}$ mixing $\ensuremath{\Delta}{m}_{d}$ based on sample $152\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected at $\ensuremath{\Upsilon}(4S)$ resonance with Belle detector KEKB asymmetric-energy...
We report the results of a search for D0-D0 mixing in D0 --> K+ pi- decays based on 400 fb(-1) data accumulated by Belle detector at KEKB. Both assuming CP conservation and allowing violation, we fit decay-time distribution parameters x y, as well parameter R(D), ratio doubly Cabibbo-suppressed to Cabibbo-favored decays. The 95% confidence level region (x'2,y') plane is obtained using frequentist method. Assuming conservation, find x'2 < 0.72 10(-3) -9.9 y' 6.8 level; these are most...
CP violation in B→J/ψK∗ decays is studied using an angular analysis a data sample of 253 fb−1 recorded with the Belle detector at KEKB e+e− collider. The flavor separated measurements decay amplitudes indicate no evidence for direct violation. T-odd asymmetries triple product correlations, and results are consistent standard model null predictions. time-dependent gives following values CP-violating parameters: sin2ϕ1=0.24±0.31±0.05 cos2ϕ1=0.56±0.79±0.11.Received 17 April...
We report measurements of the charmless semileptonic decays B0→π−/ρ−ℓ+ν and B+→π0/ρ0ℓ+ν, based on a sample 2.75×108 BB¯ events collected at ϒ(4S) resonance with Belle detector KEKB e+e− asymmetric collider. In this analysis, accompanying B meson is reconstructed in mode B→D(∗)ℓν, enabling detection signal modes high purity. measure branching fractions B(B0→π−ℓ+ν)=(1.38±0.19±0.14±0.03)×10−4, B(B0→ρ−ℓ+ν)=(2.17±0.54±0.31±0.08)×10−4, B(B+→π0ℓ+ν)=(0.77±0.14±0.08±0.00)×10−4...
The battery swapping mode of electric vehicles (EVs) is expected to play an essential role in transportation and power systems. Plenty batteries are managed by the charging stations (BSCSs) as core assets. Proper inventory scale charging/discharging control planning operation BSCSs. This paper addresses two critical aspects BSCS batteries: optimal amount tradeoff between initial number depleted fully-charged at beginning each scheduling horizon. Aiming these, time coupling inventory,...
Electric vehicle battery swapping stations (BSS) have significant potential in power system frequency regulation. However, uncertainties of demand and regulation signals introduce risks to operational benefits performances. Aming enhance overall profitability, this study proposes day-ahead bidding real-time scheduling strategies for BSS participate In the stage, model is established. Then, information-gap decision theory (IGDT) employed determine optimal reserve capacities. The randomness...
We have measured the branching fraction B, longitudinal polarization fL, and CP asymmetry coefficients A S for B0→ρ+ρ− decays with Belle detector at KEKB e+e− collider using 253 fb−1 of data. obtain B=[22.8±3.8(stat)+2.3−2.6(syst)]×10−6, fL=0.941+0.034−0.040(stat)±0.030(syst), A=0.00±0.30(stat)±0.09(syst), S=0.08±0.41(stat)±0.09(syst). These values are used to constrain Cabibbo-Kobayashi-Maskawa phase ϕ2; solution consistent standard model is ϕ2=(88±17)° or 59°<ϕ2<115° 90% C.L.Received 11...
We report a measurement of the charge asymmetry for same-sign dileptons in $B^0$-$\bar{B}^0$ mixing, $A_{\rm sl}$. The data were collected with Belle detector at KEKB. Using sample 78 fb$^{-1}$ recorded $\Upsilon(4S)$ resonance and 9 an energy 60 MeV below resonance, we measure sl} = (-1.1 \pm 7.9(\text{stat}) 7.0(\text{sys}))\times 10^{-3}$.