Belle II
Belle II has been designed to make precise measurements of weak interaction parameters, study exotic hadrons, and search for new phenomena beyond the Standard Model of particle physics. In June 2022, SuperKEKB, the asymmetric energy accelerator that provides e+e− collisions inside Belle II, achieved a new luminosity world record of 4.7x1034cm−2s−1. From 2019-2022 Belle II accumulated a 400 fb-1 data sample. These data provide large samples of beauty and charm hadrons, as well as tau leptons. Unique searches for dark-matter related particles are also pursued.
Data taking is resuming in 2024 after a long shutdown period, during which both accelerator and detector have been improved.
Events
Scheduled internal meetings
Mar 25 - 27, 2024 at KEK
Jun 3 - 7, 2024 at KEK
Jun 17 - 22, 2024 at Mississippi
Sep 16 - 20 (offline), Sep 24 - 25 (online)
Oct 7 - 11, 2024 at KEK
Oct 14 - 18, 2024 at KEK
Here is the complete list of events
Highlights
Recent publications- Determination of the CKM angle \(\phi_3\) from a combination of Belle and Belle II results [2404.12817]
- Measurement of the branching fraction of the decay \(B^-\to D^0\rho(770)^-\) at Belle II [2404.10874]
- Search for rare \(b\to d\ell^+\ell^-\) transitions at Belle [2404.08133]
- Measurement of the \(e^+e^-\to\pi^+\pi^-\pi^0\) cross section in the energy range 0.62-3.50 GeV at Belle II [2404.04915]
- Search for a \(\mu^+\mu^-\) resonance in four-muon final states at Belle II [2403.02841]
Click here for the complete list of publications
Belle II at Work
Belle II Collaboration
Job Opportunities
