C. H. Cheng
A5033928520- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Neutrino Physics Research
- Superconducting Materials and Applications
- Computational Physics and Python Applications
- Particle Detector Development and Performance
- Nuclear physics research studies
- Black Holes and Theoretical Physics
- Distributed and Parallel Computing Systems
- Quantum chaos and dynamical systems
- Radiation Detection and Scintillator Technologies
- Cosmology and Gravitation Theories
- Astrophysics and Cosmic Phenomena
- Muon and positron interactions and applications
- Advanced Image and Video Retrieval Techniques
- Supercapacitor Materials and Fabrication
- Lanthanide and Transition Metal Complexes
- Rice Cultivation and Yield Improvement
- Parallel Computing and Optimization Techniques
- Nuclear Physics and Applications
Guangdong University of Technology
2025
Deutsches Elektronen-Synchrotron DESY
2023
California Institute of Technology
2006-2009
Lawrence Livermore National Laboratory
2004-2006
We observe the decays ${D}_{s1}^{*}(2710{)}^{+}\ensuremath{\rightarrow}{D}^{*}K$ and ${D}_{sJ}^{*}(2860{)}^{+}\ensuremath{\rightarrow}{D}^{*}K$ measure their branching fractions relative to $DK$ final state. also observe, in ${D}^{*}K$ mass spectrum, a new broad structure at of $(3044\ifmmode\pm\else\textpm\fi{}{8}_{\mathrm{stat}}(\genfrac{}{}{0}{}{+30}{\ensuremath{-}5}{)}_{\mathrm{syst}})\text{ }\text{ }\mathrm{MeV}/{c}^{2}$ having width...
<title>Abstract</title> Domain adaptive retrieval (DAR) aims to perform effective cross-domain by transferring knowledge from the source domain target and reducing distribution discrepancy. However, often lacks annotations, using pseudo-labels generated for data may reduce accuracy due their inaccuracy. Additionally, although features same class differ across domains, they share global invariant information crucial identifying samples in different domains. To address these challenges, this...
A dedicated measurement of additional radiation in e+e−→μ+μ−γ and e+e−→π+π−γ initial-state-radiation events is presented using the full BABAR data sample. For first time results are at next-to- next-to-next-to-leading order, with one two photons, respectively, for from initial final states. Comparison predictions phokhara afkqed Monte Carlo generators performed, revealing discrepancies one-photon rates angular distributions former. This disagreement has a negligible effect on e+e−→π+π−(γ)...
This article presents a model-independent search for an additional, mostly sterile, heavy neutral lepton (HNL), that is capable of mixing with the Standard Model $\ensuremath{\tau}$ neutrino strength $|{U}_{\ensuremath{\tau}4}{|}^{2}$, corresponding to absolute square extended Pontecorvo-Maki-Nakagawa-Sakata matrix element. Data from BABAR experiment, total integrated luminosity $424\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$, are analyzed using kinematic approach makes no assumptions...
We study the processes ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{K}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}$, ${K}_{S}^{0}{K}^{\ifmmode\pm\else\textpm\fi{}}{\ensuremath{\pi}}^{\ensuremath{\mp}}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}$, and...
A new mechanism has been proposed to simultaneously explain the presence of dark matter and matter-antimatter asymmetry in universe. This scenario predicts exotic $B$ meson decays into a baryon sector anti-baryon ($\psi_D$) with branching fractions accessible at factories. We present search for $B \rightarrow \Lambda \psi_D$ using data collected by $BABAR$ experiment SLAC. reaction is identified fully reconstructing accompanying requiring single $\Lambda$ remaining particles. No significant...
A new dark sector antibaryon, denoted ψD, could be produced in decays of B mesons. This Letter presents a search for B+→ψD+p (and the charge conjugate) e+e− annihilations at 10.58 GeV, using data collected BABAR experiment. Data corresponding to an integrated luminosity 398 fb−1 are analyzed. No evidence signal is observed. Branching fraction upper limits range from 10−7–10−5 obtained 90% confidence level masses 1.0<mψD<4.3 GeV/c2. The result also reinterpreted provide first on...
We report a measurement of the time-dependent CP asymmetry B0->D(*)CP h0 decays, where light neutral hadron is pi0, eta or omega meson, and D meson reconstructed in eigenstates K+ K-, K0S pi0 omega. The performed combining final data samples collected at Y(4S) resonance by BaBar Belle experiments asymmetric-energy B factories PEP-II SLAC KEKB KEK, respectively. contain ( 471 +/- 3 ) x 10^6 BB pairs recorded detector 772 11 10^6, detector. measure parameters -eta_f S = +0.66 0.10 (stat.) 0.06...
A new mechanism has been proposed to simultaneously explain the presence of dark matter and matter-antimatter asymmetry in universe. This scenario predicts exotic $B$ meson decays into a baryon sector anti-baryon ($ψ_D$) with branching fractions accessible at factories. We present search for $B \rightarrow Λψ_D$ using data collected by $BABAR$ experiment SLAC. reaction is identified fully reconstructing accompanying requiring single $Λ$ remaining particles. No significant signal observed,...
Using the entire <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi mathvariant="normal">ϒ</a:mi><a:mo stretchy="false">(</a:mo><a:mn>4</a:mn><a:mi>S</a:mi><a:mo stretchy="false">)</a:mo></a:math> dataset, first two-dimensional unbinned angular analysis of semileptonic decay <f:math xmlns:f="http://www.w3.org/1998/Math/MathML" display="inline"><f:mover accent="true"><f:mi>B</f:mi><f:mo stretchy="false">¯</f:mo></f:mover><f:mo...
We present a new technique, ``tau polarimetry,'' for measuring the longitudinal beam polarization in an ${e}^{+}{e}^{\ensuremath{-}}$ collider through analysis of ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\tau}}^{+}{\ensuremath{\tau}}^{\ensuremath{-}}$ events. By exploiting sensitivity $\ensuremath{\tau}$ decay kinematics to beams, we demonstrate that can be measured with 3 per mil systematic uncertainty at interaction point using technique is independent spin and...