Takeo Higuchi

20 April 2023
2023 KPS spring meeting

Abstract: Belle II is a high-energy physics experiment searching for new physics in a large number of B meson, D meson, and tau lepton decays produced in electron-positron collisions at the SuperKEKB accelerator at KEK laboratory in Japan. Belle II has reported a handful of world-leading or competitive results to date. Examples of the results include the lepton universality tests, the search for the new CP-violating phase and the long-lived particles, and the tau leptons mass. We will report on the latest new-physics search results at Belle II. Belle II operation is currently suspended to upgrade the vertex detector and PID detector. At the symposium, we will also review the status of the upgrade activities and discuss the positive impact of the upgrade on physics output. Relevant results from still lasting the predecessor Belle activities will also be mentioned.