A5066769206- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Dark Matter and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Superconducting Materials and Applications
- Radiation Detection and Scintillator Technologies
- Calibration and Measurement Techniques
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Medical Imaging Techniques and Applications
- Distributed and Parallel Computing Systems
- Nuclear Physics and Applications
- Laser-Plasma Interactions and Diagnostics
- Atmospheric and Environmental Gas Dynamics
- International Science and Diplomacy
- NMR spectroscopy and applications
- Planetary Science and Exploration
- Atmospheric Ozone and Climate
- Scientific Measurement and Uncertainty Evaluation
- Gamma-ray bursts and supernovae
Nagoya University
2022-2024
Campbell Collaboration
2023
We describe the planned near-term and potential longer-term upgrades of Belle II detector at SuperKEKB electron-positron collider operating KEK laboratory in Tsukuba, Japan. These will allow increasingly sensitive searches for possible new physics beyond Standard Model flavor, tau, electroweak dark sector that are both complementary to competitive with LHC other experiments.
The Belle II experiment at the SuperKEKB electron-positron collider aims to collect an unprecedented data set of $\rm 50~{\rm ab}^{-1}$ study $CP$-violation in $B$-meson system and search for Physics beyond Standard Model (BSM). is already world's highest-luminosity collider. In order planned within approximately one decade, target reach a peak luminosity 6.3 \times 10^{35}~cm^{-2}s^{-1}$ by further increasing beam currents reducing beam-size interaction point squeezing betatron function...
The Belle II experiment at the SuperKEKB electron-positron collider aims to collect an unprecedented data set of $50~{\rm ab}^{-1}$ study $CP$-violation in $B$-meson system and search for Physics beyond Standard Model. is already world's highest-luminosity collider. In order planned within approximately one decade, target reach a peak luminosity $\rm 6 \times 10^{35}~cm^{-2}s^{-1}$ by further increasing beam currents reducing size interaction point squeezing betatron function down...
We report two new measurements for tests of lepton flavor universality between electrons and muons using semileptonic $B$ decays with a data set $189~\mathrm{fb}^{-1}$ collected at the Belle II experiment 2019 2021. Firstly, we find ratio inclusive branching fractions $R(X_{e/\mu}) \equiv \mathcal{B}(\overline{B} \rightarrow Xe^{-}\overline{\nu}_{e})/\mathcal{B}(\overline{B} X\mu^{-}\overline{\nu}_{\mu}) = 1.007 \pm 0.009 (\mathrm{stat.}) 0.019 (\mathrm{syst.})$. This measurement leads to...
The SuperKEKB/Belle II experiment, the successor of KEKB/Belle experiment at KEK, started physics data taking with full detector system in March 2019. Time-of-Propagation (TOP) was integrated into Belle for charged particle identification barrel region. TOP mainly consists quartz radiators, Micro-Channel-Plate (MCP) PMTs, and front-end electronics. It reconstructs a ring image Cherenkov photons generated by an incident particle. measures timing each detected photon accuracy less than...