L. Y. Dong
A5009404328- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Computational Physics and Python Applications
- Speech Recognition and Synthesis
- Speech and Audio Processing
- Infant Health and Development
- High-Energy Particle Collisions Research
- Linguistic Variation and Morphology
- Literature, Language, and Rhetoric Studies
Harbin Engineering University
2024
The Beijing Spectrometer (BESIII) collaboration uses $e^+e^-$ collisions in the tau-charm energy region to study a broad spectrum of topics. These include studies light mesons and baryons, charmonium, including exotic baryons containing charmed QCD tau physics, as well searches for new physics. following is Snowmass white paper that outlines BESIII accomplishments potential each these areas.
The study of beta decay the charmed baryon provides unique insights into fundamental mechanism strong and electro-weak interactions. $\Lambda_c^+$, being lightest baryon, undergoes disintegration solely through charm quark weak decay. Its an ideal laboratory for investigating non-perturbative effects in quantum chromodynamics constraining parameters Cabibbo-Kobayashi-Maskawa matrix interaction theory. This article presents first observation Cabibbo-suppressed $\Lambda_c^+$ a neutron...
Based on 7.33 fb$^{-1}$ of $e^+e^-$ collision data collected by the BESIII detector operating at BEPCII collider center-of-mass energies from 4.128 to 4.226 GeV, a search for Majorana neutrino $\nu_m$ is conducted in lepton-number-violating decays $D_s^+\to h^-h^0e^+e^+$. Here, $h^-$ represents $K^-$ or $\pi^-$, and $h^0$ $\pi^0$, $K_S^0$ $\phi$. No significant signal observed, upper limits their branching fractions 90\% confidence level are determined be $\mathcal{B}(D_s^+\to...