A5006829941- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Black Holes and Theoretical Physics
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Scientific Computing and Data Management
- Atomic and Subatomic Physics Research
Fudan University
2022-2023
Institute of Modern Physics
2022
We report a study of Λ+c→Σ+π0, Λ+c→Σ+η, and Λ+c→Σ+η′ using the data sample corresponding to an integrated luminosity 980 fb−1 collected with Belle detector at KEKB asymmetric-energy e+e− collider. The branching fractions relative Λ+c→Σ+π0 are measured as BΛ+c→Σ+η/BΛ+c→Σ+π0=0.25±0.03±0.01 BΛ+c→Σ+η′/BΛ+c→Σ+π0=0.33±0.06±0.02. Using BΛ+c→Σ+π0=(1.25±0.10)%, we obtain BΛ+c→Σ+η=(3.14±0.35±0.17±0.25)×10−3 BΛ+c→Σ+η′=(4.16±0.75±0.25±0.33)×10−3. Here uncertainties statistical, systematic, from...
A bstract Using a data sample of 980 fb − 1 collected with the Belle detector at KEKB asymmetric-energy e + collider, we study for first time singly Cabibbo-suppressed decays $$ {\Omega}_c^0\to {\Xi}^{-}{\pi}^{+} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>Ω</mml:mi> <mml:mi>c</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> <mml:mo>→</mml:mo> <mml:msup> <mml:mi>Ξ</mml:mi> <mml:mo>−</mml:mo> </mml:msup> <mml:mi>π</mml:mi> <mml:mo>+</mml:mo> </mml:math> and Ω K...
We search for excited charmed baryons in the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msubsup><a:mi mathvariant="normal">Λ</a:mi><a:mi>c</a:mi><a:mo>+</a:mo></a:msubsup><a:mi>η</a:mi></a:math> system using a data sample corresponding to an integrated luminosity of <d:math xmlns:d="http://www.w3.org/1998/Math/MathML" display="inline"><d:mn>980</d:mn><d:mtext> </d:mtext><d:mtext>...
We present the first measurement of branching fraction singly Cabibbo-suppressed (SCS) decay $\Lambda_c^+ \to p \eta'$ with $\eta' \eta\pi^+\pi^-$, using a data sample corresponding to an integrated luminosity 981 $\rm fb^{-1}$, collected by Belle detector at KEKB $e^{+}$$e^{-}$ asymmetric-energy collider. A significant $\Lambda_c^+$ signal is observed for time significance 5.4$\sigma$. The relative respect normalization mode pK^-\pi^+$ measured be \begin{equation*} \frac{{\cal...