| Speaker: | Higuchi Takeo (Kavli IPMU) |
|---|---|
| Title: | Search for New Particles and New Particle Physics at the Belle II Experiment and at Kavli IPMU |
| Date (JST): | Wed, Aug 30, 2023, 15:30 - 17:00 |
| Place: | Lecture Hall |
| Abstract: |
In a quest for new physics beyond the Standard Model of particle physics, we started an electron-positron collider experiment Belle II in Japan in 2019. The SuperKEKB accelerator has marked a peak luminosity of more than double the predecessor accelerator’s achievement, and the Belle II detector has recorded an integrated luminosity of 424 fb^-1. Using the recorded data sample, we are conducting several new physics searches, including searches for a new CP-violating phase and a test of the CKM matrix unitarity, and some of the results already reach world-leading precision. Besides these activities, we are working on a light-dark-sector-particle search based on Belle II’s synergy with theoretical and cosmological activities at Kavli IPMU, which is expected to uniquely offer the tightest constraint to their mass and coupling strength. At the colloquium, after briefly explaining the experimental apparatus performance, we give detailed introductions to the activities in new physics search plus dark-sector-particle search at Belle II. |
| Remarks: | Lecture Hall + Zoom |
